#all {
    width: 1366px;
    height: 2310px;
    border: solid 1px white;
    margin: auto;
    margin-top: 0;
    background-image: url("imageindex.jpg");
    background-repeat:no-repeat;
    /*filter: alpha(opacity=85); 设置背景图片透明度
    -moz-opacity: 0.85;
    -khtml-opacity: 0.85;
    opacity: 0.85;*/
}

#d3 {
    width: 996px;
    height: 2060px;
    border: none;
    margin: 0 auto;
    background-color: #f7f2f2;
    font-size: 25px;
    font-family: STSong;
}

#dtitle p {
    padding-left:20px;
    padding-right:20px;
    padding-top: 10px;
}

#igs {
    margin-top: 30px;
    margin-left: 180px;
}