*{
    margin:0;
    padding: 0;
    box-sizing: border-box;
    font-size: 30px;
}

         .box-1{display: grid;place-items: center;border:  5px ;padding: 10px;border-radius: 20px;
        box-shadow: 0 0 5px rgba(0,0,0,0.1);color: £fff;}

         .box-2{display: grid;place-items: center;border:  5px o;padding: 10px;border-radius: 20px;
            box-shadow: 0 0 5px rgba(0,0,0,0.1);color: £fff;
}
        .box-3{display: grid;place-items: center;border: 5px;padding: 10px;border-radius: 20px;
            box-shadow: 0 0 5px rgba(0,0,0,0.1);color: £fff;}

    body{background-color:linear-gradient(grey) ;height: 100px;}    box-1{margin-top:45px;display:inline-block;background:black;}
	box-2{hover:darkblue;display:block;color:green;}h3{display:block;width:80px;height45px;color:gray;pointer:mouse pointer;}