body {
    margin-left: 100px;
}

.controls {
    position: absolute;
    top: 20px;
    right: 100px;
}

#box1, #box2 {
    position: relative;
    top: 0;
    left: 0;
    width: 200px;
    height: 200px;
    opacity: 1;
    background-color: green;
}

#box2 {
    background-color: yellow;
}

input[type="button"] {
    width: 86px;
}