*{
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
}

body{
    width: 100%;
    height: 100vh;
    position: relative;
}

a{
    width: 100%;
    height: 100%;
    position: absolute;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center center;
}

/* Portrait */
@media screen and (orientation:portrait) {
    a{
        background-image: url('./mobile/2.jpg');
    }
}
/* Landscape */
@media screen and (orientation:landscape) {
    a{
        background-image: url('./laptop/2.jpg');
    }
}