JSFiddle - React, Tailwind, and code Playground

HTML

<div id="content">
    <div id="left-div">Left div left div</div>
    <p>...Content...</p>
    <div class="some-note">Text of note</div>
    <p>...Content...</p>
    <p>...Content...</p>
    <p>...Content...</p>
</div>

CSS

#content{
  background:#fff;  
}

#left-div{
float:left;
width:200px;
height:700px;
min-height:700px;
margin-right:20px;
background:#fff !important;  
}

.some-note{
 background:aqua;    
}