<!DOCTYPE html>
<html lang="en-US">
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width">
    <title>Fluid grid with offset class</title>
    <style>

    * { box-sizing: border-box; }

    body {
      width: 90%;
      max-width: 980px;
      margin: 0 auto;
    }

    .wrapper {
      padding-right: 2.08333333%;
    }

    .row {
      clear: both;
    }

    .col {
      float: left;
      margin-left: 2.08333333%;
      width: 6.25%;
      background: rgb(255,150,1