source: Dev/trunk/src/client/dojox/app/tests/swapViewTestApp/css/layoutApp.css

.main {
        float: left;
        width: 100%;
        height: 100% 
}

.mainCenter {
        left: 251px !important;
}

.center {
        float: left;
        height: 100%
}

.left {
        float: left;
        width:250px;
        background-color: #C5CCD3;
        z-index:100;
        height: 100%
}

@media screen and (max-width: 560px) {
        .center {
                float: left;
                width: 100%;
        }

        .mainCenter {
                left: 0 !important;
        }

        .left {
                display: none;
                float: left; 
                width:0;
        }
}
html,body {
        width: 100%;
        height: 100%;
}