.switcher_page {
    height: 100vh;
}
.site-brand {
    background-image : url('http://lorempixel.com/1920/800/food');
    background-size: cover;
    background-repeat: no-repeat;
    position: relative;
    background-attachment: fixed;
}

.site-brand:before {
    position: absolute;
    top: 0;
    height: 100%;
    left:0;
    right:0;
    background: linear-gradient(to right,rgba(43,222,203,0.8) 50%,rgba(80,201,255,0.80));
}

.site-brand {
    padding : 80px 30px 80px;
    text-align: center;
    color: #fff;
    height: 70vh;
}

.site-brand .title {
    font-size: 3em;
}

.card-deck {
    margin-top: -30%;
}

/* Pointer */

input.btn.btn-primary {
    cursor: pointer;
}