JSFiddle - React, Tailwind, and code Playground

HTML

<!doctype html>
<html>
    <head>
        <title>Title</title>
    </head>
    <body>
        <div id="wrapper">
            <aside>
                Left-block
            </aside>
            <section>
                News
            </section>
        </div>
    </body>
    <html>

CSS

body {
    color: #8f8f8f;
    font: 12px Tahoma, sans-serif;
    background-color: #f8f8f8;
    margin: 0;
    padding: 0;
}
header, 
nav, 
section, 
article, 
aside, 
footer {
  display: block;
}
#wrapper {
    min-width: 1024px;
    max-width: 98%;
}
aside {
    float: left;
    width: 250px;
    position: fixed;
    background: #272727;
    height: 100%;
}
section {
    margin-left: 280px;
    margin-right: 0px;
}