JSFiddle - React, Tailwind, and code Playground

by tea4two

HTML

<div id="container">
<div id="box1">sdfas af
    <p>asfasdfas da</p>
    <p>asfasdfas da</p><p>asfasdfas da</p><p>asfasdfas da</p><p>asfasdfas da</p><p>asfasdfas da</p><p>asfasdfas da</p><p>asfasdfas da</p><p>asfasdfas da</p><p>asfasdfas da</p>
    </div>
    <div id="box2">
        asdfasd asd a
        <p>asfa</p>
        <p>adfa sda sfasfasfasfasfasfas fasfasfas fasfa sfasfasfa sfa</p>        <p>adfa sda sfa</p>        <p>adfa sda sfa</p>        <p>adfa sda sfa</p>
    </div>
</div>

CSS

* {
    box-sizing: border-box;
}
#container {
    width: 400px;
    background-color: #f0f0f0;
    position: relative;
    overflow: hidden;
}

#box1, #box2 {
    float: left;
    padding: 10px;
}

#box1 {
    width: 100px;
    margin-right: 10px;
}
#box1:after {
    /*box1の背景*/
    content: '';
    border: 1px solid #000;
    position: absolute;
    left:0;
    top:0;
    bottom: 0;
    width: 100px;
}
#box2:after {
    /* box2の背景 */
    content: '';
    display: block;
    position: absolute;
    left: 110px;
    top: 0; bottom: 0; right: 0;
    border: 1px solid #ccc;
}
#box2 {
    width: 290px;
}