openhab-core/bundles/org.openhab.ui.dashboard/web/main.css

body {
    background-color: #F9F9F9;
}

body, h1, h2, h3 {
    font-family: "Roboto", Helvetica, Arial, sans-serif;
    font-weight: 300;
}

.container {

}

.line {
    position: relative;
}

.line .decorator {
    position: absolute;
    left: 0px;
    width: 50px;
    border-top: 1px solid #F60;
}

header {
    background: #FFF;
    height: 70px;
    line-height: 70px;
    text-align: center;
    position: fixed;
    top: 0;
    width: 100%;
    box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.15);
    z-index: 1;
}

header .container {
    position: relative;
    padding: 0 20px;
}

header img {
    position: absolute;
    left: 10px;
    top: 15px;
}

@media (max-width: 768px) {
    header h3 {
        display: none;
    }
}

section {
    margin-top: 90px;
    margin-bottom: 70px;
}

.link {
    box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.15);
    margin-bottom: 20px;
    text-align: center;
    cursor: pointer;
}

.link .body {
    position:relative; 
    height: 150px;
    background-color: white;
    background-size: cover;
    background-repeat: no-repeat;
}

.link .body .overlay { 
    position: relative;
    top: 0px;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0,0,0,0.65) 0%,rgba(0,0,0,0) 100%);
    opacity: 1;
    z-index: 10;
    font-size: 80px;
    color: white;
    line-height: 150px;
}

.link .body .overlay:hover { 
    background: linear-gradient(135deg, rgba(255,102,0,1) 0%,rgba(255,102,0,0.5) 50%,rgba(30,87,153,0) 100%);
}

.link .footer {
    height: 50px;
    background-color: #F60;
    color: white;
    line-height: 50px;
    text-transform: uppercase;
}

footer {
    background: #333;
    color: #fff;
    height: 50px;
    line-height: 50px;
    text-align: center;
    position: fixed;
    bottom: 0;
    width: 100%;
    box-shadow: 0 -2px 4px 0 rgba(0, 0, 0, 0.15);
}