#matrix{position: fixed; top:0; left: 0; z-index: -1;opacity:0.5; }
#main {
    background: transparent;
    clear: both;
    margin: 0 auto;
    width: 1280px;
}
#left {
    left: auto;
}
.headerText {
    left: 320px;
}
#right_content {
    background: transparent;
}
.cnblogs_code div {
    background-color: #c5c4c4;
}
#sidebar_search{
    display:none;
}