.btn-xem-them:not(:disabled):hover {
    background-color: #eee;
    box-shadow: none;
}
.btn-xem-them {
    width: 100%;
    max-width: 300px;
    border-radius: 3px;
    padding: 0.5em;
    border: 1px solid #ddd;
    display: block;
    margin: 0.5rem auto ;
    cursor: pointer;
    color: #666;
    text-transform: uppercase;
    height: initial;
    background-color: initial;
}