@charset "utf-8";

article.button {
    text-align: center;
    padding: 0 auto;
}
article.button > * {
    display: block;
    width: 300px;
    height: 60px;
    background-repeat: no-repeat;
    background-position: 0 0;
    margin: 0 auto;
}
article.button > a:hover {
    background-position: 0 -60px;
}
article.button > * > span {
    display: none;
}
article.button > *.session  {
    background-image: url("../images2016/button_session.jpg");
}
article.button > *.registration  {
    background-image: url("../images2016/button_registration.jpg");
    
}
article.button > *.submission  {
    background-image: url("../images2016/button_submission.jpg");
    
}