<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Simple linear gradients</title>
<style type="text/css">
body {padding: 1em;}
section {background: gold; position: relative; padding: 25px; height: 25px; width: 800px;}
#spectrum {background-image: linear-gradient(90deg,
		red, orange 10%, yellow 20%, green 30%, blue 40%, indigo 50%, violet 60%);}

b {position: absolute; top: 0%;
	font: 12px Helvetica, monospace; text-align: center; text-indent: 0.5em;
	width: 3.5em; margin-left: -1.75em; margin-t