.joystick{position:absolute;top:5%;width:100%;height:90%;border-radius:100%;background-color:#000;background:url(joystick-bg.png) no-repeat center center;background-size:contain}.joystick-relative{width:100%;height:100%}.joystick-relative-stick{box-sizing:border-box;position:absolute;left:50%;top:50%;width:50%;height:0;padding-bottom:50%;margin-left:-25%;margin-top:-25%;border-radius:100%;background-color:#000;border:3px solid #adde00}