body{
    background-image:url(../assets/pexels-ben-cheung-140183-715134.jpg);
    background-size:1450px;
    background-repeat: no-repeat;
}
#box{
    box-sizing:border-box;
    display:inline-block;
    border: 10px solid #fbfbfbff;
    border-radius:5px;
    padding: 25px;
    margin:15px;
    width:400px;
    height:400px;
    color:white;
}