example.css

* {	padding: 0; margin: 0; vertical-align: top; }

body {
    background: url(background.png) repeat-x;
    font: 18px/1.5em "proxima-nova", Helvetica, Arial, sans-serif;
}

a {	color: #069; }
a:hover { color: #28b; }

h2 {
    margin-top: 15px;
    font: normal 32px "omnes-pro", Helvetica, Arial, sans-serif;
}

h3 {
    margin-left: 30px;
    font: normal 26px "omnes-pro", Helvetica, Arial, sans-serif;
    color: #666;
}

p {
    margin-top: 10px;
}

button {
    font-size: 18px;
    padding: 1px 7px;
}

input {
    font-size: 18px;
}

input[type=checkbox] {
    margin: 7px;
}

#header {
    position: relative;
    width: 900px;
    margin: auto;
}

#header h2 {
    margin-left: 10px;
    vertical-align: middle;
    font-size: 42px;
    font-weight: bold;
    text-decoration: none;
    color: #000;
}

#content {
    width: 880px;
    margin: 0 auto;
    padding: 10px;
}

#footer {
    margin-top: 25px;
    margin-bottom: 10px;
    text-align: center;
    font-size: 12px;
    color: #999;
}

.demo-container {
    box-sizing: border-box;
    width: 850px;
    height: 150px;
    padding: 5px 5px 5px 5px;
    margin: 5px auto 5px auto;
    border: 1px solid #ddd;
    background: #fff;
    background: linear-gradient(#f6f6f6 0, #fff 50px);
    background: -o-linear-gradient(#f6f6f6 0, #fff 50px);
    background: -ms-linear-gradient(#f6f6f6 0, #fff 50px);
    background: -moz-linear-gradient(#f6f6f6 0, #fff 50px);
    background: -webkit-linear-gradient(#f6f6f6 0, #fff 50px);
    box-shadow: 0 3px 10px rgba(0,0,0,0.15);
    -o-box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    -ms-box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    -moz-box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    -webkit-box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.demo-placeholder {
    width: 100%;
    height: 100%;
    font-size: 14px;
    line-height: 1.2em;
}

.legend table {
    border-spacing: 5px;
}