#content {
    min-height: calc(100vh - 150px);
}

#content .error {
    font-size: 12px;
    font-weight: bolder;
    color: red;
    width: 100%;
    text-align: center;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
}

#VideoPlayer_Frame.evideo {
    float: none;
    margin-left: auto;
    margin-right: auto;
}