.banner_div{ height: 300px;}
#banner{ height: 100%;}
.banner_div .left_item{ margin-top: 80px;}
.banner_div .banner_item_01 .left_item .title{ color: #fff; font-size: 50px; line-height: 1;}
.banner_div .banner_item_01 .left_item .content{ font-size: 22px; color: #333; margin: 40px auto; width: 400px; text-align: center; height: 40px; line-height: 40px;background: #fff; border-radius: 100px; box-shadow: 0px 0px 10px rgba(0,0,0,.2);}
.banner_div .banner_item_01 .left_item .content span{ color: #c00;}