I'm trying to animate the width of the span inside the an of this link.
The same demo: https://www.khaneyeax.com/en
.lang { background-color: rgba(255,255,255,0.1); left: -130px; top: 400px; } .lang a { padding: 10px; color: black; max-width: 0; display: block; overflow: hidden; white-space: nowrap; transition: max-width 1s ease-in-out; } .lang a:hover { width: 300px; max-width: 300px; } <div id="left"> <a href="" class="position-fixed three_dweb"><img src="https://via.placeholder.com/150"></a> <div class="position-fixed lang"> <a href="" class="farsi">Language Persian FA</a> <a class="english">Language English EN</a> <a class="search"><i class="fas fa-search"></i> Advanced Search </a> </div> </div>