JSFiddle - React, Tailwind, and code Playground

HTML

<div style="position:relative;">
<div class="box1"></div>
<div class="box2"></div>
</div>

CSS

.box1{
    width:200px;
    height:200px;
    border:1px solid black;
    margin:0 50%;
    left:-150px;
    position:absolute;
}
.box2{
    width:50px;
    height:50px;
    border:1px solid black;
    position:absolute;
    right:0px;
}