JSFiddle - React, Tailwind, and code Playground

HTML

<div id="top">
        <div id="logo">
            <img alt="logo"  src="http://www.google.com/intl/en_ALL/images/srpr/logo1w.png" />
        </div>
    </div>
    <div id="mainBlock">
        Contact Us
    </div>

CSS

div#logo{
    float: left;
}
#top{
  width: 100%;
}
#mainBlock{
  width:100%;
    clear:left;
}