.mainsq {
    position: relative;
    /* left: -220px; */
    
    width: 500px;
    border: 3px solid darkblue;
    padding: 8px;
    background-color: dimgrey;
}
.altsq {
    position: relative;
    /* top:-511px; */
    /* left: 220px; */
    width: 400px;
    border:3px dashed darkblue;
    padding: 8px;
    background-color: grey;
}