#main ul {
    width: 100%;
}

#main ul h3 {
    border-bottom: 1px solid #ccc;
    padding-bottom: 10px;
    margin-bottom: 20px;
}

#main ul li img {
    width: 300px;
    height: 200px;
    float: left;
    margin-right: 50px;
}

#main ul li {
    width: 100%;
    height: 280px;
}