main.css

html {
    height:100%;
    background:white;
}

body {
    min-height: 100%;
    margin:0;
    padding: 0;
}
* {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
#page {
    position: absolute;
    top: 0px;
    bottom: 0px;
    left: 0px;
    right: 0px;
    text-align: center;
    min-height: 200px;
}
.scale {
    display: inline-block;
    height: 100%;
}
#game-cont {
    position: absolute;
    top:70px;
    left: 0;
    right: 0;
    bottom: 0;
    text-align: center;
    margin: 20px 0 20px 0;
}
@media (max-width: 768px) {
    #game-cont {
        margin: 0;
    }
}
#game-cont > div {
    vertical-align: middle;
    display: inline-block;
}

#board {
    width: 100%;
}
#board > div {
    position: relative;
}

#turn-cont {
    font-family: "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; 
    font-size: 30px;
    color: white;
    position: absolute;
    top:0;
    left: 0;
    right: 0;
    height: 70px;
    text-align: center;
}
#turn-cont > div {
    vertical-align: middle;
    display: inline-block;
}
.row {
    display: inline-block;
    width: 14%;
}
.sqHolder{
    position: relative;
    width: 100%;    
}
.sqHolder:before{
    content: "";
    display: block;
    padding-top: 100%;  
}
.gem.available {
    border: 2px solid #DDDDDD;
    background-color: #F6F6F6;
}
.gem{
    border-radius:50%;
    margin: 5%;
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;

}