.header-wrapper {
    background-color: #444;
}

.view {
    background-color: #fff;
}

div#gallery {
    padding: 2px;
    float: left;
}

#gallery > div {
    border: solid 1px rgba(0,0,0,0.1);
    width: 380px;
    height: 254px;
    margin: 2px;
    float: left;
    -webkit-box-sizing: border-box;
    -webkit-background-size: 100%;
    background-position: center top;
    background-repeat: no-repeat;
    -webkit-background-origin: border-box;
}

#gallery > div.portrait {
    -webkit-background-size: 100% auto;
}

#gallery > div.landscape {
    -webkit-background-size: auto 100%;
}