body {
    background: #678;
}

.window {
    box-shadow: 0 5px 30px rgba(0,0,0,.5);
    background: white;
}

.title {
    font-family: Helvetica, Arial, sans-serif;
    font-size: 14px;
    line-height: 36px;
    text-align: center;
    background: -webkit-gradient(linear, left top, left bottom, from(#eee), to(#ccc));
    border-bottom: 1px solid #888;
    color: black;
    margin: 0;
}

.window > div {
    position: absolute;
    top: 37px;
    left: 0;
    right: 0;
    bottom: 0;
}


.flow1 {
    position: absolute;
    top: 0;
    left: 0;
    right: 50%;
    bottom: 50%;
    margin: 20px 10px 10px 20px;
}

.flow2 {
    position: absolute;
    top: 0;
    left: 50%;
    right: 0;
    bottom: 50%;
    margin: 20px 20px 10px 10px;
}

.flow3 {
    position: absolute;
    top: 50%;
    left: 0;
    right: 50%;
    bottom: 0;
    margin: 10px 10px 20px 20px;
    background: white;
}

.flow4 {
    position: absolute;
    top: 50%;
    left: 50%;
    right: 0;
    bottom: 0;
    margin: 10px 20px 20px 10px;
    background: white;
}

.slide:before {
    content: "";
    display: block;
    height: 50%;
    margin-top: -45px;
}

.slide {
    border-top: 3px solid rgba(255,255,255,.35);
    border-left: 3px solid rgba(255,255,255,.35);
    border-bottom: 3px solid rgba(0,0,0,.2);
    border-right: 3px solid rgba(0,0,0,.2);
    background: -webkit-gradient(linear, left top, right bottom, from(#00b7ea), to(#009ec3));
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    line-height: 90px;
    font-size: 70px;
    font-family: Helvetica, Arial, sans-serif;
    font-weight: 100;
    text-align: center;
    box-sizing: border-box;
    color: white;
}

.flow1.window {
    background: black;
}

.flow2 .slide {
    height: 65px;
    font-size: 30px;
}

.flow3 .slide {
    margin-top: -150px;
    margin-left: -95px;
    height: 300px;
    width: 190px;
    font-size: 80px;
}
.flow4 .slide {
    margin-top: -160px;
    margin-left: -160px;
    height: 320px;
    width: 320px;
    font-size: 80px;
}