JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Test</title>
</head>
<body>
    <div id="column1">
  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr   brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr   brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr   brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr   brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr   brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr   brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr   brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr  brtbtr ...

CSS

html,body{
    height:100%;
}
body{
    font-size: 0;
    line-height: 0;
}
#column1, #column2{
    min-height:100%;
    _height:100%;
    position:relative;
    font-size:14px;
    line-height:17px;
    display: inline-block;
    *display: inline;
    zoom: 1;
    vertical-align:top;
}
#column1{
    width: 30%;
    background-color: red;
}
#column2{
    width: 70%;
    background-color: gray;
}