JSFiddle - React, Tailwind, and code Playground

by Nicolas PUJOL

HTML

<div class="progress">
    <div class="bar"></div>
</div>

CSS

.progress,
.bar {
    height: 40px;
}

.progress {
    width: 100%;
    border: 1px solid #000;
}

.bar {
    background-color: red;
    animation: expandWidth 2s linear;
}

@keyframes expandWidth {
    0% {
        width: 0;
    }
    100% {
        width: 100%;
    }
}