JSFiddle - React, Tailwind, and code Playground
flexible column hack
by paullferguson
HTML
<div class="two-col-left-large clearfix">
<section class="two-col-left-large-flex widget-box email-sign-up second-gradient">
<h3>For the latest listings & news</h3>
<a href="#" class="button" title="And recive regular emails">Sign up for Alerts</a>
<img src="/images/email-sign-up.png" alt="Fwrmers Weekly Newsletter">
</section>
<section class="two-col-left-large-fix widget-box" id="advert-slot-4">
<!-- FarmersWeeklyInteractive/Classified -->
<a href="http://ad.doubleclick.net/N6831/jump/FarmersWeeklyInteractive/Classified;sec0=classified;sec2=home;slot=4;tile=2;sz=300x250;ord=123456789?">
<img src="http://ad.doubleclick.net/N6831/ad/FarmersWeeklyInteractive/Classified;sec0=classified;sec2=home;slot=4;tile=2;sz=300x250;ord=123456789?" width="300">
</a>
</section>
</div>
CSS
.two-col-left-large {padding-left: 300px;}
.two-col-left-large-fix { float:left; position:relative; width:100px; right:100px; margin-left:-100%; clear: none; overflow: hidden;}
.two-col-left-large-flex { float:left; position:relative; width:100%; clear: none; background: gray;}