body, html {
    height: 100%;
    overflow: hidden;
    margin: 0;
}

.bg {
    background-image: url("background.jpg");
    height: 100%;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}
.text {
    position:absolute;
    bottom: 5px;
    right: 5px;
    color: darkgray;
}