a.button {
    color: #000;
    text-decoration: none;
    display: block;
    padding: 15px;
    border: 1px solid #000;
    text-align: center;
    -moz-border-radius: 5px;
    -webkit-border-radius: 5px;
    -o-border-radius: 5px;
    border-radius: 5px;
    background: #FFF;
    background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(#FFF), to(#EEE));
    background: -moz-linear-gradient(0% 90% 90deg, #EEE, #FFF);
    -webkit-transition: all .3s ease-in-out;
    -moz-transition: all .3s ease-in-out;
    transition: all .3s ease-in-out;
    -moz-box-shadow: 0px 0px 5px #ccc;
    -webkit-box-shadow: 0px 0px 5px #ccc;
    box-shadow: 0px 0px 5px #ccc;
}

a.button:hover {
    color: #888;
    border-color: #888;
    -moz-box-shadow: 0px 0px 0px #ccc;
    -webkit-box-shadow: 0px 0px 0px #ccc;
    box-shadow: 0px 0px 0px #ccc;
}

a.button:active {
    background: #EEE;
    background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(#EEE), to(#FFF));
    background: -moz-linear-gradient(0% 90% 90deg, #EEE, #FFF);
}