File: fifteenpuzzle.css

html, body {
    font: 13px Arial
}

h1 {
    text-align: center
}

table {
    -moz-user-select: -moz-none;
    -khtml-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    user-select: none;
    margin: 0px auto;
    background-color: #FFE7A5;
    border-collapse: separate;
    border-spacing: 10px;
    padding: 0;
    border: solid 1px #aaa;
    font-size: 45px;
    *border-collapse: expression('separate', cellSpacing = '10px');
}

table td {
    width: 100px;
    height: 100px;
    padding: 0;
    margin: 0;
    top: 0;
    z-index: 0;
    vertical-align: top
}

table td a {
    position: absolute;
    width: 100px;
    height: 100px;
    line-height: 100px;
    display: block;
    text-decoration: none;
    padding: 0;
    color: #fff;
    text-align: center;
    z-index: 1000
}

.odd {
    background-color: green;
}

.even {
    background-color: red;
}

.info {
    width: 430px;
    margin: 15px auto 0 auto;
    border: solid 1px #ccc;
    overflow: hidden;
    padding: 5px;
    height: 25px;
    line-height: 25px
}

.info strong {
    color: red
}

.info div {
    float: left;
    font-size: 18px;
}

.info button {
    float: right;
    display: block;
    height: 25px;
    line-height: 12px
}