.mask_div { width: 100%; height: 100%; position: fixed; left: 0; top: 0; z-index: 100; background: #ccc; opacity: 0.5; }
.show_div { width: 260px; height: 120px; position: fixed; left: 50%; top: 50%; margin-top: -60px; margin-left: -130px; z-index: 9999; background: #f9f9f9; border-radius: 3px; overflow: hidden; }
    .show_div .h3_tit { color: #0CF; font-size: 16px; border-bottom: 2px solid #0CF; line-height: 100%; padding: 10px; }
    .show_div .p_info { padding: 10px; }
    .show_div .p_btn { text-align: center; }
        .show_div .p_btn input[type="button"] { border: 1px solid #0CF; color: #0CF; background: none; border-radius: 3px; line-height: 100%; padding: 5px 20px; cursor: pointer; }
            .show_div .p_btn input[type="button"].h_btn { border: 1px solid #ddd; color: #999; }