.testbox {
    margin: 30px auto;
    width: 500px;
    height: 200px;
    -webkit-border-radius: 8px/7px;
    -moz-border-radius: 8px/7px;
    border-radius: 8px/7px;
    background-color: #ebebeb;
    -webkit-box-shadow: 1px 2px 5px rgba(0,0,0,.31);
    -moz-box-shadow: 1px 2px 5px rgba(0,0,0,.31);
    box-shadow: 1px 2px 5px rgba(0,0,0,.31);
    border: solid 1px #cbc9c9;
}