.header img {
    background-image: none;
    height: auto;
    margin-top: 0px; 
}
.header{
    background-image: none;
    height: auto;
}
a.banner_button {
    background-color: rgb(254, 199, 49);
    box-shadow: 0px 4px 0px 0px rgba(20, 45, 82, 0.67);
    display: inline-block;
    position: relative;
    top:-100px;
    margin: 0px 32px;
    width: 9.8%;
    height: 42px;
    font-size: 20px;
    font-family: "MFLangQian_Noncommercial";
    color: rgb(255, 255, 255);
    font-weight: bold;
    line-height: 42px;
    border-radius:25px;
}
a.banner_button:hover {
    background-color: rgb(206, 161, 38);
}