body
{
    width: 100%;
    height: 100%;
    background-image: url('../pic/pexels-david-besh-884788.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

.login
{
    background-color: #fff;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    background-color: rgba(0, 0, 0, .5);
    color: rgba(255, 255, 255, 1);
    text-align: center;
    width: 60%;
    height: 50%;
    vertical-align: center;
}

.text
{
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-60%);
}