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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

              <div class="wrapper">
		<div class="inner">
				<div class="content">
						<h1>Ratio padding calculator</h1>
						<p>Enter the width and height of your element to calculate the vertical padding needed to make your element responsive whilst maintaining its aspect ratio.</p>
						<p>Example usage: when using a background image and you need the div to be the height of the image.</p>
						<div class="margin-top">
								<div class="pull-left text-large col-md-6 padding-left-0">
												<input id="width" type="number" maxlength="5" placeholder="Width" class="form-control pull-left">
												<span class="pull-left larger-text">x</span>
												<input id="height" type="number" maxlength="5" placeholder="Height" class="form-control pull-left">
												<input id="btn" type="submit" value="Calculate" class="btn btn-primary">
								<div id="calculation" class="col-md-6 larger-text"></div>
	body {
			height: 100%;
	.wrapper {
			display: table;
			width: 100%;
			height: 100%;
			background: #dee9ff;
	.inner {
			display: table-cell;
			vertical-align: middle;
	.content {
			max-width: 960px;
			margin: auto;
	h1 {
			margin-bottom: 1em;
	p {
			margin-bottom: 1em;
	.margin-top {
			margin-top: 2em;
	.padding-left-0 {
			padding-left: 0;
	input[type=number] {
			width: 150px;
			margin-right: 1em;
	span {
			display: inline-block;
			margin: -0.1em 0.5em 0 0;
	.larger-text {
			font-size: 175%;
              var calcuation = function() {
		"use strict";
		var btn = document.getElementById("btn"),
				w = document.getElementById("width"),
				h = document.getElementById("height"),
				ans = document.getElementById("calculation"),
				output = "";

		btn.addEventListener("click", function(e) {
				output = ((Math.round(h.value) / Math.round(w.value)) * 100).toFixed(2);
				if (output > 0) {
						ans.innerHTML = "padding-top: " + output.replace(".00", "") + "%";
				} else {
						ans.innerHTML = "Invalid dimensions";
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