body {
    margin: 0;
    padding: 0;
    background-color:#fafafa;
}
#slide {
    padding: 20px;
}
#slide img {
    display: block;
    padding-bottom: 20px;
    margin: 0 auto;
}
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #ccc;
    text-align: center;
    font-size: 30px;
}
.pro-text {
    margin-top: 300px;
}