. Angular PrimeNG is an open-source framework with a rich set of native Angular UI components that are used for great styling and this framework is used to make responsive websites with very much ease. 1. accordion li. Your accordion markup alone is valid and functional as long as it is not a descendant of a. . 3 wolf moon officia aute, non cupidatat skateboard. Accordion header elements have a button role and use aria-controls to define the id of the content section along with aria-expanded for the visibility state. What is an accordion. The accordions are set up with typescript/bootstrap like this: <accordion> <accordion-group heading=""> </accordion-group> </accordion> How would I add an up/down arrow to the accordion? I tried using :after pseudo classes and the content: attribute with css for the rendered accordion classes, but that didnt work. . tmbundle TextMate; AngularJS-Atom Atom; AngularJS. js path"] Share. The other solution is to simply hard code the logic to close and open the accordion. 0-beta-0 you can use multi parameter and the openAll and closeAll functions : 1- Change the mat-accordion element to set the muti to true and get the MatAccordionComponent instance : 2- Then use the openAll and closeAll functions to open or close all panels : <button (click)="accordion. Remember that buttons in W3. AngularJS UiBoostrap Accordion. angular; bootstrap-4; or ask your own question. 0. The accordion uses collapse internally to make it collapsible. html file to get final out on the web browser:. opened]="opened"> <p class="content">Content of the accordion</p> </div> </div> I would suggest you to read the documentation so that you see everything Angular can do. . . Bootstrap widgets for Angular: autocomplete, accordion, alert, carousel, datepicker, dropdown, offcanvas, pagination, popover, progressbar, rating, scrollspy, tabset.