#board  {position: absolute; margin:40px;} 
        #sw1 { left:103px; top:495px; }
        #sw2 { left:174px; top:495px; }
        #sw3 { left:246px; top:495px; }
        .sw { width: 44px; height: 44px; position: absolute; background-color: none; border-radius: 5px; }
        .sw:hover { background-color: gainsboro; opacity:0.3; }
        #vr { position: absolute; left:90px; top:370px;  -webkit-appearance: slider-vertical; width: 30px; height: 80px; }
        #led1 { left:330px; top:258px; }
        #led2 { left:330px; top:278px; }
        #led3 { left:330px; top:298px; }
        #led4 { left:330px; top:318px; }        
        .led { background-color:white; width: 34px; height: 18px; position: absolute; border-radius: 3px; opacity:0.7; }
        #seg1  { position: absolute; left:320px; top:75px; }
        #seg2  { position: absolute; left:260px; top:75px; }
        #seg3  { position: absolute; left:200px; top:75px; }
        #seg4  { position: absolute; left:140px; top:75px; }
        .seg { 
                font-family: 'Segment7Standard'; 
                font-weight: normal; 
                font-style: italic; 
                font-size: 92px;
                color: red;
                background-color:rgb(82,72, 82);
                width: 60px;
                text-align: center;
                vertical-align:middle;
        }