trigger.addEventListener('click', () => const isOpen = trigger.getAttribute('aria-expanded') === 'true'; trigger.setAttribute('aria-expanded', !isOpen); // You would then toggle a class like .is-open on the menu via JS );
A basic dropdown menu consists of a container element, a trigger element (usually a button), and a list of options. Here's an example HTML structure:
/* The Menu Container */ .dropdown-menu opacity: 0; visibility: hidden; transition: opacity 0.3s ease, visibility 0.3s ease; dropdown css
For mobile, convert absolute positioning to full-width block:
: The actual links, text, or images that appear when the trigger is activated. Basic Implementation Logic trigger
<div class="dropdown"> <button class="dropdown-trigger" aria-expanded="false"> Menu <span aria-hidden="true">▾</span> </button>
.dropdown-options ul list-style: none; margin: 0; padding: 0; a trigger element (usually a button)
<div class="dropdown"> <button class="dropdown-button">Dropdown</button> <div class="dropdown-options"> <ul> <li><a href="#">Option 1</a></li> <li><a href="#">Option 2</a></li> <li><a href="#">Option 3</a></li> </ul> </div> </div>
/* Trigger Styles */ .dropdown-button background-color: #4CAF50; color: #fff; padding: 10px 20px; border: none; border-radius: 5px; cursor: pointer;
