JSFiddle - React, Tailwind, and code Playground

HTML

<div>
    <div href="#" class="word" data-text="edia">M</div>
    <div href="#" class="word" data-text="antra">M</div>
</div>

CSS

.word {
    display:inline-block;
    font-size:1em;
    line-height:1;
    position:relative;
    font-size:50px;
}
.word:first-child {
    color:orange;
}
.word:last-child {
    color:grey;
}
.word:after {
    content:attr(data-text);
    position:relative;
    display:inline-block;
    overflow:hidden;
    max-width:0;
    color:black;
    font-size:20px;
    transition:max-width .5s ease-in;
}
div:hover .word:after {
    max-width:40px;
}