JSFiddle - React, Tailwind, and code Playground

HTML

<div id="floatbox">Floating right</div>
<div class="contentbox">Hello?</div>
<div class="contentbox">Hello?</div>
<div class="contentbox">Hello?</div>
<div class="contentbox">Hello?</div>
<div class="contentbox">Hello?</div>
<div class="contentbox">Hello?</div>
<div class="contentbox">Hello?</div>
<div class="contentbox">Hello?</div>
<div class="contentbox">Hello?</div>

CSS

#floatbox {
    width: 200px;
    float: right;
    background-color: #ddd;
    height: 150px;
}
#wrapper {
  
}
.contentbox {
 background-color: #ccc;   
    border: 1px solid #caa;
    padding: 3px;
    margin: 5px;
    overflow:hidden;
}