#header{
    background-image: url("/static/imgs/bg2.jpg");
    background-repeat: repeat;
    text-align: center;
    height: 182px;
    width: 100%;
    overflow: hidden;
}
/*字体样式，大小，占高*/
#header #logo{
    font-family: 宋体;
    font-size: 70px;
    margin-top: 20px;
    height: 35%;
}
/*字体线条变细，占高*/
#header #slogan{
    font-weight: lighter;
    margin-top: 15px;
    height: 20%;
}
/*字体，字号，占高*/
#header .nav{
    font-family: 黑体;
    font-size: larger;
    height: 20%;
}
#header .nav a:hover {
    color: #05c; /*鼠标放上去时的颜色*/
}
#index-wrapper a:hover {
    color: #05c; /*鼠标放上去时的颜色*/
}
@media screen and (max-width: 639px){
    #header #logo{
        margin-top: 20px;
        font-family: 宋体;
        font-size: 50px;
        height: 35%;
    }
}