#intro {
    margin-right: -30px;
    margin-left: -30px;
    position: relative;
    margin-top: -16px;
    min-height: 100%;
    position: relative;
    background-repeat: no-repeat;
    background-size: cover;
    backface-visibility: hidden;
    opacity: 1;
}

.welcome {
    position: absolute;
    width: 840px;
    z-index: 100;
    top: 60%;
    left: 50%;
    margin-left: -420px;
    margin-top: -30px;
    color: white;
    font-size: 150%;
    font-weight: 600;
    text-shadow: 0px 4px 3px rgba(0,0,0,0.6), 0px 8px 13px rgba(0,0,0,0.6), 0px 18px 23px rgba(0,0,0,0.5);
    -webkit-font-smoothing: subpixel-antialiased;
    backface-visibility: hidden;
    background-color: transparent;
}

.img-contact {
    height: 35vh;
    width: 100%;
    background-repeat: no-repeat;
    background-size: cover;
    backface-visibility: hidden;
}

.img-register {
    height: 50vh;
    width: 100%;
    background-repeat: no-repeat;
    background-size: cover;
    backface-visibility: hidden;
}