JSFiddle - React, Tailwind, and code Playground

by zhang li

HTML

<div class="container">
    <div class="pos"></div>
    <div class="fixed"></div>
</div>

CSS

.container {
    width: 100px;
    height: 100px;
    position: relative;
    background: green;
}
.pos {
    width: 20px;
    height: 100%;
    position: absolute;
    background: black;
}
.fixed {
    position: fixed;
    left: 30px;
    background: red;
    width: 30px;
    height: 100%;
    /* height: inherit; */
}