.net-cube {
    margin:20px;
}

.hr-90 {
    width:100%;
    border: 0;
    height: 1px;
    background: #666;
    background-image: -webkit-linear-gradient(left, #eee, #666, #eee);
    background-image:    -moz-linear-gradient(left, #eee, #666, #eee);
    background-image:     -ms-linear-gradient(left, #eee, #666, #eee);
    background-image:      -o-linear-gradient(left, #eee, #666, #eee);
    margin: 15px;
}

.color-tip {
    vertical-align: middle;
    margin: 0 5px;
}

.color-scheme-title {
    font-size: 1.2em;
    padding: 5px;
    margin: 0.5em 0 0.5em 1em;
}