.nav {
    min-width: 1040px;
}
.nav_right {
    position: relative;
}
.scroll_left {
    position: absolute;
    width: 30px;
    height: 65px;
    left: -30px;
    top: 0px;
}
.scroll_right {
    position: absolute;
    width: 30px;
    height: 65px;
    right: 0px;
    top: 0px;
}