JSFiddle - React, Tailwind, and code Playground

HTML

<span class="userpic">
    Ссылка
    <div class="user-menu"></div>    
</span>

CSS

.user-menu{
	
	opacity: 0;
	position: absolute;
    top: 30px;
    left: 0;
    width: 160px;
    padding: 8px 0;
    background-color: #232527;
	transition: all .3s ease;
    height:0;
}
.userpic:hover .user-menu{
	opacity: 1;
    height: 120px;
	transform: translateY(-5px);
}