JSFiddle - React, Tailwind, and code Playground

HTML

<div id="containment">
  <div id="containment-shadow-left">
    Hello World!
  </div>
</div>

CSS

html, body
{
  height: 100%;
}

body
{
  margin: 0;
  padding: 0;
}

#containment
{
  width: 60%;
  min-width: 780;
  min-height: 100%;
  margin: 0 auto 0 auto;
  padding: 0;
  background: #ff2;
    position:relative;
}

#containment-shadow-left
{
  background: url(images/shadow-left.png) left repeat-y red;
  padding-left: 16px;
  height: 100%;
    position:absolute;
    width:100%
}