JSFiddle - React, Tailwind, and code Playground

HTML

<div class="page">
    <div class="left">Меню</div>
    <div class="right">Меню</div>
    <div class="content">Контент</div>
</div>

CSS

.page{
    height: 300px;
    background: #888;
    min-width: 400px;
}
.left{
    height: 300px;
    float:left;
    background: #783;
    width:150px;
}
.right{
   height: 300px;
   float:right;
   background: #783;
   width:150px;
}
*{
    text-align:center;
}