#mainSlide .jssorb21 div, #mainSlide .jssorb21 .av{
    background:url('/m/images2/main_bullet_ov.png') no-repeat center center;
    overflow:hidden;
}
#mainSlide .jssorb21 div {background:url('/m/images2/main_bullet.png') no-repeat center center;}
#mainSlide .jssorb21 .av {background:url('/m/images2/main_bullet_ov.png') no-repeat center center;}
#mainSlide .jssorb21 .dn {background:url('/m/images2/main_bullet_ov.png') no-repeat center center;}