body{
    background-image: url(../img/sssurf.svg);
    background-position: bottom;
    background-color: #f4f6fa;
    background-repeat: no-repeat;
    background-size: contain;
    height: 100vh;
}

.cs{
    position: relative;
    top: 40%;
}

img{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    width: 50%;
}