JSFiddle - React, Tailwind, and code Playground

HTML

<div class = 'right'>
</div>
<div class = 'left'>
</div>
<hr>
<div class = 'left1'>
</div>
<div class = 'right2'>
</div>

CSS

div {
    width: 50%; 
    height: 100px
}

.left {
background: red;
}
.right {
    float: right;
	background: blue;
}
.left1 {
background: green;
}
.right2 {
    float: right;
	background: grey;
}