.ui.segment.intubannner{
    height: 400px;
    /* width: 700px; */
    background-image: url('https://www.lntu.edu.cn/images/ba2.jpg');
    background-size:cover;
    background-repeat: no-repeat;
    padding: 30px;
    max-width: 100%;
}

.ui.header.aligned.center{
    left: 50%;
    top: 50%;
    position: absolute;
    transform:translate(-50%,-50%);
    padding: 0px;
    font-size: 30px;
    color: white;
    font-style: normal;
}

.eight.wide.column{
    text-align: center;
    position: absolute;
    height: auto;
}