<!DOCTYPE html>
<html>
    <head>
        <style>
            #x {
                transform: translate(100px, 100px);
            }
            div div {
                position: absolute;
                width: 100px;
                height: 100px;
                background: green;
            }
            .a {
                transform: translate(-60px, -60px);
                filter: drop-shadow(-20px -20px 0px blue);
            }
            .b {
                transform: translate(-60px, 60px);
                filter: drop-shadow(-20px 20px 0px blue);
            }
            .c {
                transform: translate(60px, -60px);
                filter: drop-shadow(20px -20px 0px blue);
            }
            .d {
                transform: translate(60px, 60px);
                filter: drop-shadow(20px 20px 0px blue);
            }
        </style>
    </head>
    <body>
        <div id=x>
            <div class=a></div>
            <div class=b></div>
            <div class=c></div>
            <div class=d></div>
        </div>
    </body>
</html>