Bootstrap snippet Shows open and close icon arrows for state of collapse panel Collapse Accordion with Chevron Icons A89eHpGjzu. Appeal Forms | All 50 States | US Legal Forms JavaScript. Using this trick, we will create an amazing collapsible sidebar in a Spotfire analysis containing the complete dataset of every Nobel Prize from 1901 to 2016 (thank's to the Nobel Prize API). HTML / CSS Forums on Bytes. CSS class name(s) to add to the control. A generic pattern for "toolbars" which offer buttons for manipulating content in some way. See the "view. Life's too short for bad software! With Balsamiq Wireframes, anyone can design great user interfaces. This drop-down menu (aka flyout menu - vertical menu with horizontal flyout to the right) uses only CSS and HTML, but also uses a little JavaScript ONLY for IE6, along with a helpful IE6 CSS fix for when the submenu is longer than the main menu. Competitive pricing and flexible licenses available. @stjn Good point. 2 - Invisible HTML input radio elements, referenced by the label elements. There are times when a page can contain many related elements which makes it very long; using a collapsing feature enables editors to shorten the page, and allow readers to expand areas of interest to them. They are ordinary links. When it comes to building eye-catching navigation bars for modern web sites, you know that there's a huge variety of approaches out there that can be used with relative ease. Raymond also worked out a way to make those versions produce tree structures with some simple CSS that IE does not support, or a script that it does, and also provided a way to change the image (only works if you use a mouse to click it, and must not be combined with auto-collapse). Implementing A Pure CSS Collapsible. applications relies heavily on CSS 3. You can add videos not only to your sliders but also as a background for most of your blocks. A generic pattern for "toolbars" which offer buttons for manipulating content in some way. Disabling interactivity with CSS. Many author can inspire their particular reader with their story or their experience. Next to the plus button, there is a blue brush button. By adding a parent wrapper with a data-role="collapsibleset" attribute to the collapsibles they will be visually grouped and they will behave like an accordion so only one section can be open at a time. after to it If would be searching the some text which is inside the region its showing zero (0) results,it seems visual studio doesn't search text inside collapsed region. 中国信息技术服务标准云教育?#25945;?/title> #html5zoo-1 { width: 100%. collapse class. Lesson 10: Margin and padding. Bootstrap Collapse example snippets with CSS, Javascript and HTML code. Priority mail, delivery confirmation is always included in the shipping fee. Defining the component. baskısı HTML5 ve CSS3 ile gelen çok önemli yenilikleri kapsamlı olarak anlatmaktadır. Using Code Collapse for Code. It can only be fully utilized during Overdrive State, and in Normal mode only 27% tops. When a tag has the scoped attribute, its CSS will apply to elements of the current component only. This is the default table with only a border defined for the TDs. Next to the plus button, there is a blue brush button. Defining Custom Fonts in CSS With @font-face and font-display. Separate class names by a space if more than one class. By using hidden checkboxes, we can control the opening and closing. I came across this issue myself with a table that was working fine on desktops, but ran off the screen on mobile. Include a jsTree theme. com - DOCTYPE html> DOCTYPE html>. The basic concept of margin collapse is that if two margins are contiguous, they will collapse into one margin, which will have the largest of the two margins. custom package containing only those components and. 3 life-cycles. In this article I’ll show you how this works, including a few examples to get you started. the collapse value also used. This is an approximate transcript of the course, since Michel often changed his mind in the middle of a sentence to be t. It's 100% responsive, fully modular, and available for free. As of this writing this technique applies to HTML technologies. , Attention: Community Support, 1 Hacker Way, Menlo Park, CA 94025. The reason behind this is that you''ll end up not getting regular updates on master page functionalities released by Microsoft (they only deploy these to the oslo and seattle master pages). [UNKNOWN]HTMLEditor loses content when in a collapsible panel. The ngShow directive shows or hides the given HTML element based on the expression provided to the ngShow attribute. In today's tutorial we're going to take a look at an experiment I've been working on in the past few days. Go ahead and measure. Bootcards is a cards-based UI framework. Is it possible to create a collapsible div using CSS only? I know you can do this with Javascript, but I am curious if there is some way of simulating an asynchronous show/hide action on-click. other codes i have removed from js and css. A simple CSS ONLY modal windows template 28-08-2015 A simple CSS ONLY template for modal windows, fullscreen, slide in and push in. It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. The basic technique is the same as Pure CSS Tab Panel. Some time ago, mostly (but not only) in 1990s there were several pure HTML tricks used to achieve things now done by CSS. A researcher has found a new method that can be used to track a web site visitor's mouse movements on a page without the use of any JavaScript, but instead by using only HTML and CSS. Pressing the close button closes the dialog and returns focus to the "trigger" element that invoked it. I love discovering different approaches to solve a problem. To make a section of text collapsible, surround it with [collapse] and [/collapse]. The basic idea is to have a html data table, that has multiple section, ( group or rows ) that can be toggled. Please have in mind that custom Master Pages in SharePoint Online should be used if no other customization option exist. CSS Table Background color. In this blog, you will learn how to hide Quick Launch using CSS in SharePoint Online. ) instead of a , with the href attribute set to the corresponding id of the collapsable. While many of the selectors mentioned in this article are part of the CSS3 spec, and are, consequently, only available in modern browsers, you owe it to yourself to commit these to memory. In this tutorial we will be creating a basic responsive navigation menu with dropdown using only HTML and CSS. Historically, margin collapsing only exists because older browsers like Netscape 3 used to do it before they had CSS, and when CSS was created, it had to describe that behaviour so it could be implemented in CSS. transition: PropType. SharePoint Headers only uses up to h4. In this chapter we are going to a give more styles to the tables using CSS. But this Code is not working as ,its loading with rows Expanded. delmy-gonzalez. Basic collapsible. When using the horizontal attribute with this directive, CSS can reflow as the collapse element goes from 0px to its desired end width, which can result in height changes. #view02:target ~ *. com If you were to create a rectangular box outline around the content on your web page using Cascading Style Sheets (CSS), the default is that your box borders will have pointed right-angled corners. integrated new collapse-commander image trigger feature; added new togglegroup shortcode attribute and data-togglegroup html attribute to reference groups of expand elements with out auto-collapsing other groups, such as when using the real attribute; added the ability to load plugin css only when shortcode is used. Then, we'll add some HTML5 data attributes that will be used to display the column's label on smaller device sizes. could you able to identify the issue and help me?. Bootstrap Collapse example snippets with CSS, Javascript and HTML code. Bootstrap Collapse Examples While you surely know, Bootstrap 4 efficiently creates your internet site responsive, applying its elements just as a reference for disposing, size, and so on. Subtle Animation. I am not able to collapse and expand multiple rows. For most of the reason, we need to create a responsive mobile friendly navigation menu. The final output will look like this:. And that's all there is to creating a CSS-only accordion box! If you'd like to see it in action, click here. Bootcards is a cards-based UI framework. CSS animation is a method of animating certain HTML elements without having to use processor and memory-hungry JavaScript or Flash. In my opinion, this declaration should be included in all CSS reset stylesheets, but I will leave that decision up to you. How CSS-based display:table, display:table-row, display:table-cell, are all usable today across Firefox 2+, Safari 3+, Opera 9+ and IE8. HTML / CSS Forums on Bytes. In today’s tutorial we’re going to take a look at an experiment I’ve been working on in the past few days. Introduction. CSS Profile collects information used for financial aid decisions. In this tutorial, we have applied CSS selector : active on link (which looks like a button) to show its effect. The only constraint is to have the radio before and on a parent level from the elemets to 'command' (hide/show by css) in the DOM to be able to target them with css selectors ;) Zlse itt remaind mostly to style your stuff to display as you want (tabs, collapsible menu, and so on. This guide creates a FAQ expand/collapse javascript question and answer set up whereby when another question is expanded the current open answer is collapsed. Full testing results at Using aria-expanded to indicate the state of a collapsible element. Tables in HTML are a quite strange elements. But I need to get Collapsed. Prepworks by Progressive Collapsible Salad Spinner - 4 Quart This old baby only got used every month or two. Its relationship to the collapsible element is detected by using an ID attribute with the prefix mw-customcollapsible and a corresponding class attribute with prefix mw-customtoggle for the collapsible element and the togglelink respectively. A researcher has found a new method that can be used to track a web site visitor's mouse movements on a page without the use of any JavaScript, but instead by using only HTML and CSS. ARC Network & Security and Arbor Networks/title> Home About. Since 2008, our mission is to help rid the world of bad user interfaces. I love discovering different approaches to solve a problem. We need: 1 - Visible HTML label elements, which is the title of panels. The element is shown or hidden by removing or adding the. Collapsible tree diagram in v4. after to it If would be searching the some text which is inside the region its showing zero (0) results,it seems visual studio doesn't search text inside collapsed region. The div tag is used to specify a section within an HTML document. Is there a way to set expandable/collapsible regions in CSS? My file is starting to get out of control, and I would like a way to hide what I'm not working on. It uses a set of nice beautifier scripts made by Einar Lielmanis. You can specify a className with your desired style and animation. It's 100% responsive, fully modular, and available for free. CSS only collapsible menu by TaminoMartinius @ jsdo. 4 on both DIVs that have an explicit CSS height attribute defined, and without. Read or Stay Baffled Tuesday, February 24, 2009. Welcome to a tutorial on how to create a pure CSS collapsible tree menu. Some details below pertain only to that layout, and not to ALA 3. Organizing Data with Tables. Review (mpn:css-1 for sale) Salad Spinner Css-1 Progressive Green Collapsible. #view02:target ~ *. The majority of the HTML and CSS is pretty straightforward, and differs little from the CSS table tutorial mentioned earlier. could you able to identify the issue and help me?. When using the horizontal attribute with this directive, CSS can reflow as the collapse element goes from 0px to its desired end width, which can result in height changes. I cannot figure out how to make multiple collapsing div elements on this page without writing a ton of extra CSS. Collapsible margins only apply to block-level elements. HR Parent site - HR sub site 1 - HR sub site 2 IT Parent site - IT sub site 1 - IT sub site 2. An alternative to animating width and height might be to use the (now-deprecated) clip property to animate the expand and collapse effect. HTML table builder featuring inline CSS formatting Collapse Borders Font: Apply. baskısı HTML5 ve CSS3 ile gelen çok önemli yenilikleri kapsamlı olarak anlatmaktadır. Demo Image: Header Navigation Menu Header Navigation Menu. Pure CSS is responsive out of the box. ng-hide CSS class onto the element. Click the button to toggle between showing and hiding the collapsible content. Scrollbar and cursor properties are used only in the Internet Explorer browser and are very popular with those who use it. Paragraph of text. (it will wait for CSS transitions to complete). com If you were to create a rectangular box outline around the content on your web page using Cascading Style Sheets (CSS), the default is that your box borders will have pointed right-angled corners. CSS is a programming language that is used in web development. 0, whose February 2001 CSS redesign helped usher in the modern CSS-layout era. I’ve been using display: table-cell and display: table in CSS for a couple of different projects recently and have been impressed by the results. css file as usual and refer to them using className. If you want to collapse only the table and not other content, you can do this using wikitable parameters. I'm just re-designing my website and I would like to have a collapsible vertical menu, currently it is non-collapsible, is this possible to do in CSS. You can select from 4 levels of compression, depending on how legible you want the compressed CSS to be versus degree of compression. Tree menus are one of the most traditional forms of website navigation, and while there are plenty of plugins out there, there sadly don’t seem to have a lot of tutorials for it. A logo or brand link, and the navigations links. HTML / CSS Forums on Bytes. See the “view. The only thing that keeps me from being totally happy with the page I made this way is the way everything shifts up and down so jarringly when a div is revealed. Generally, these features are implemented via JavaScript, however using CSS3 it is possible to create such content using only HTML and CSS — no JavaScript required. By styling the collapsible section from within its own Shadow DOM, the styles do not affect elements in Light DOM (the standard, outer DOM). Creating CSS-only accordions can be a tricky task, so in this post we will try to understand the main concepts developers use when they need to create one. Browser support is almost everything on both desktop and mobile, however it will only work from Internet Explorer 9 and up. You can also specify a CSS transition in line by using the transition prop. I have a pure CSS collapsable div which is based on someone else's code who uses the :target psuedoclass. Generally, these features are implemented via JavaScript, however using CSS3 it is possible to create such content using only HTML and CSS — no JavaScript required. Return to Recent Questions Q: We want to create a hyperlink (lets say google. The points above are under review (with the other scripts found here) An exacting test page would be very beneficial. The formatting of the bullets is done through CSS. Pure is ridiculously tiny. By Michiel Bijl. Looked up some more reference for using jQuery in a Confluence page (as I don't have a lot of experience using it, and didn't want to waste your time). com If you were to create a rectangular box outline around the content on your web page using Cascading Style Sheets (CSS), the default is that your box borders will have pointed right-angled corners. Button X is an online button generator that allows you to create cross browser CSS button styles in seconds. Demo Image: Header Navigation Menu Header Navigation Menu. So the question is how to override this CSS rule. Here we have the general code to create a beautiful radio and check box style based upon the iOS design that Apple has made so popular. Hi Mike Cowen!. Some time ago, mostly (but not only) in 1990s there were several pure HTML tricks used to achieve things now done by CSS. If only one of the multiple panes can be expanded at a time, we recommend using the Accordion control by referring this page. C# Corner Q3, 2019 MVPs Announced. just getting into the css world for real, and im using it for the borders of a table: border:1px solid #000000; except this only does the outside border of the table, and not the borders for the rows/columns do i need to have another. collapse class. Welcome to a tutorial on how to create a pure CSS collapsible tree menu. How Can I able to Collapse and Expand Table rows On click Have Tried like Below and is working too But I want that onLoad of the Table It must be in collapsed state. Working Subscribe Subscribed Unsubscribe 173K. Learn to Code HTML & CSS is an interactive beginner’s guide with one express goal: teach you how to develop and style websites with HTML and CSS. The entire set of modules clocks in at 3. CSS Profile collects information used for financial aid decisions. It is not exactly handling borders, but rather imitating doing it by exploiting the cellspacing and bgcolor attributes. Our faculty of tech professionals guide learners like you from mastering the fundamentals of HTML/CSS to polishing the skills of a job-ready designer. I'm just re-designing my website and I would like to have a collapsible vertical menu, currently it is non-collapsible, is this possible to do in CSS. Bootstrap is a powerful toolkit. 0, whose February 2001 CSS redesign helped usher in the modern CSS-layout era. it is a service to write JavaScript, HTML5, CSS in your browser and share it. There are examples for common styling tasks on the FAQ page. Pesan ini dikirim ke aura. Paragraph of text. Common candidates are hierarchies in a company, module architecture in a system or files on disk. Collapsible box with CSS? I did look for a tutorial online but didnt found any, so I decided to ask it here. You can define a link on another page that causes the desired collapsible DIVs on the target page to expand when the later is loaded. Or, if you prefer, you could use clip-path instead. The collapsible widget uses the jQuery Mobile CSS framework to style its look and feel. Only one collapse in an accordion group can be open at a time. Extraneous whitespace within inline scripts and styles can be removed using the JS Minify and CSS Minify filters. You can easily take advantage of the basic navigation bars they are offering. m01 { visibility: collapse } It says to collapse the element. Since these two requirements are not related to the concept of an accordion navigation, I decided to write this separate article on how to create a vertical collapsible navigation menu. I am not able to collapse and expand multiple rows. Paragraph of text. Solved: The mobile version of the bootstrap navbar opens but won't collapse when I hit the toggle button. 1 to 12 of 586 Free Bootstrap Website Templates Available on the Free CSS site. 8+ : use Collapse version 2+ Used React 16. Bootstrapicons is a search tool for icons in the bootstrap framework created by Brent Swisher. It was written to target web development. Css Collapsible Menu Overview. Why Bootcards. Only one of the both Code Collapse modes can be used at the same time. Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor. Please note collapsible menus with pure CSS are not only entirely possible, but have been popular for more than 10 years. Kitap, CSS’ye yeni başlayan ve kendisini bu konuda yetiştirmek ve ilerletmek isteyen Ön Yüz Geliştiriciler (Front End Developer) için iyi bir başvuru kaynağı niteliğindedir. In the CSS, we have a rule that only applies when the checkbox is checked. I will also compare Materialize with other popular CSS frameworks like Foundation and Boot. The patented design of this innovative Collapsible Salad Spinner is a customer favorite. Bootstrap is a powerful toolkit. Margins and Padding margin and padding are the two most commonly used properties for spacing-out elements. In other words, we. name are tied together in that only one content. You may need to go into HTML mode to make these changes. Generally, these features are implemented via JavaScript, however using CSS3 it is possible to create such content using only HTML and CSS — no JavaScript required. Both the internal basket and external bowl collapses to almost half the expanded size for storage. CSS Table Background color. Cascading Style Sheets allow you to keep the color, text size, and other parameters in styles. When the top or bottom edges are adjacent, they overlap to form a single margin, and this is called collapsing. CSS only collapsible TreeView by TaminoMartinius @ jsdo. Note the space between the TDs: as has been the case since the invention of tables, the default cellspacing is 1. Introduction. 10月の中頃、岩倉ダムキャンプ場でファミキャンをしてきました。 本当は9月に行きたかったのですが、あの長雨のおかげで行くことができず、ようやく行けることになりました。. I have changed it to better work in the WordPress post editor – but can be used in…. While you currently realize, Bootstrap efficiently creates your website responsive, using its components just as a reference for positioning, sizing, and so on. Known Issues. Or, choose Neither and nothing will be applied. For example, to see all the CSS rules in the head tag that apply to a div tag farther down the page, fold the code between the head tag and the div tag to see both sections. The box model. 2 Semantic Personal Publishing Platform. If you choose to download - all the files you need are in the dist/ folder of the download. This is the default table with only a border defined for the TDs. The term "DHTML" refers to the things that can be accomplished using JavaScript, cascading style sheets, and the document object model that allows the two to work together. it is a service to write JavaScript, HTML5, CSS in your browser and share it. Select a style from the gallery and adjust the settings to get the HTML and CSS codes. +70 animations generated by CSS only, work properly on every browser. Apply for student grants and college financial aid using one application form. The points above are under review (with the other scripts found here) An exacting test page would be very beneficial. applications relies heavily on CSS 3. ] Hybrid CSS Dropdowns. The sidebar menu for a website can be a tricky element to master. This guide creates a FAQ expand/collapse javascript question and answer set up whereby when another question is expanded the current open answer is collapsed. I tried doing this expand and collapse buttons (HTML Pages with CSS and JavaScript forum at Coderanch). Crafted with mobile devices in mind, it was important to us to keep our file sizes small, and every line of CSS was carefully considered. css border-collapse The table element and elements that behave like a table through CSS (by the display: property) can benefit from the use of border-collpase. The recommended CDN for Bootstrap, Font Awesome and Bootswatch. Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor. By default collapse-css-transition will be added to the component. We have used plus/minus sign to expand/collapse content in this example and you can change them easily. Not only the story that share in the textbooks. I still don’t find my RAM quite Perfect. Is there a way to set expandable/collapsible regions in CSS? My file is starting to get out of control, and I would like a way to hide what I'm not working on. Bootstrap is a powerful toolkit. 2 Name, Role, Value; Description. Create Responsive Menu. The only hacks that work are the ones involving the HTML. Materialize provides collapsible with various options which can be used easily anywhere. What is Mobile. Just follow their instructions on how to use bootstrap and to import it on your website. It’s fun to see things from a different angle. Its main purpose is to bundle JavaScript files for usage in a browser, yet it is also capable of transforming, bundling, or packaging just about any resource or asset. This happens especially when in table cell is placed a very long text – the single word (or basically, a long string without spaces). Provides links to information and online services and resources serving Delaware's residents, businesses, employees, visitors, and government. Go to the References folder right click on the folder >Find>Manage NuGet Packages>Click on the option. Cascading Style Sheets allow you to keep the color, text size, and other parameters in styles. It displays only the relevant content and hides other content. ITI, Badki kharari, Karaghar, Rohatas. The following code:. Shropshire Club June Update. It will only change their appearance if there is a CSS rule that indicates it should be displayed differently. Made by Kyle Lavery February 4, 2016. and they wont scroll down. but in css all code are work fine only have not. The user will see only the high level information. Industry,International Airlines etc) and display it in the dataframe. I want to expand and collapse all accordion sections with one click or have 4 different links to close each of the accordion divs. Collapsed borders are intended to overlap and are made by setting collapse for the border-collapse property, regardless of border-spacing. Bootstrap Collapse Examples While you surely know, Bootstrap 4 efficiently creates your internet site responsive, applying its elements just as a reference for disposing, size, and so on. Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. SharePoint Headers only uses up to h4. Any thoughts on how I can get this to work?. Learn to Code HTML & CSS the Book. CollapsiblePanelFocused class can also be edited directly if that is easier. To hide to a level of detail beyond the next level, click Collapse To "". 8+ : use Collapse version 2+ Used React 16. The primary classes are as follows: // Listen for click events, but only. Since these two requirements are not related to the concept of an accordion navigation, I decided to write this separate article on how to create a vertical collapsible navigation menu. It displays only the relevant content and hides other content. Here’s a direct quote from one of the rules:. Once you create the structure of the table in the markup, its easy to adding a layer of style to customize its appearance. Review (mpn:css-1 for sale) Salad Spinner Css-1 Progressive Green Collapsible. @stjn Good point. I am trying to implement a couple of collapsible div sections following an example from W3schools. To modify or apply additional styling to your web page, simply add the proper code to your custom. If you decide to only use a subset of these modules, you'll save even more bytes. Or, choose Neither and nothing will be applied. Example Code: div#collapse_1. and they wont scroll down. By adding a parent wrapper with a data-role="collapsibleset" attribute to the collapsibles they will be visually grouped and they will behave like an accordion so only one section can be open at a time. Usually when you want a horizontal list, you need to use float in the CSS code to make it work, with all its drawbacks. It is built on top of Bootstrap and uses it's responsive features. Common candidates are hierarchies in a company, module architecture in a system or files on disk. Margins and Padding margin and padding are the two most commonly used properties for spacing-out elements. If you decide to only use a subset of these modules, you'll save even more bytes. The problem with using :target is that we can’t really close the content areas again or have multiple sections open at the same time. transition: PropType. JavaScript compatible browser is needed for the proper functioning. The content is specified from within the CSS stylesheet, and appears in the page as would a real HTML element that had been inserted following all the normal content of the target element. This guide creates a FAQ expand/collapse javascript question and answer set up whereby when another question is expanded the current open answer is collapsed. Bootstrap’s collapse class exposes a few events for hooking into collapse functionality. We have seen a vertical family tree in pure CSS and now we a horizontal flowchart designed by Peiwen Lu. It explains how to. CSS Compressor. The styling is used to make elements, such as tags behave like and … Continue reading →. This CSS tutorial explains how to use the CSS property called border-collapse with syntax and examples. If collapsible specific styling is needed, the following CSS class names can be used for overrides or as keys for the classes option:. The table and related tags. I want to dynamically collapse or expand a section of a web page. line-separator ) acts as a line so we are using background property to fill the color. Bootstrap 3 has a ton of features and helpers to speed up front-end development. Checkbox attributes. Bootstrap animations are illusions of motions for web elements. The story was great and kept me turning the pages, loved the ending. The following is an example:. You can also specify a CSS transition in line by using the transition prop. Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. A'dan Z'ye CSS kitabının 4. You can add videos not only to your sliders but also as a background for most of your blocks. As this is an input filter, it will only work where input filters are applied. Implementing A Pure CSS Collapsible. It encourages you to write your application styles on top of it. Is there a way so it shows only top level sites and then one can expand or collapse any top level site to see/hide the subsites? As of now it shows. The UK ruling class of big bankers and bosses cannot be allowed to complete Thatcher’s plan to de-industrialise the UK, leaving only the big banks standing. Pure CSS is a great set of small, responsive CSS modules. You may need to go into HTML mode to make these changes. gf_list_3col This turns a multiple choice/checkbox list into an equally-spaced 3 column format. This happens especially when in table cell is placed a very long text – the single word (or basically, a long string without spaces). Bootstrap collapse is a component which toggles content. Go ahead and measure. gitana-cloudcms-docker-releases-1ed434a8ba8a4bf3a37e283ebfe82c8cfc6c9e25/. In today’s tutorial we’re going to take a look at an experiment I’ve been working on in the past few days. First we discussed branding the top navigation, then looked at branding the search box. For existing table one can simply add collapsible class. Have you created a very long list in HTML that you want your visitor to be able to collapse or expand? To set up the feature that allows your visitor to do things this way, this. JavaScript compatible browser is needed for the proper functioning.