Responsive Grid System

<div class="grid col-940">

<div class="grid col-460">

<div class="grid col-300">

<div class="grid col-300">

<div class="grid col-220">

<div class="grid col-220">

<div class="grid col-220">

<div class="grid col-540">

<div class="grid col-620">

<div class="grid col-700">

<div class="grid col-220">