code review by hf: do cuxiao huodong christmas second times

+* {
+    margin: 0;
+    padding: 0;
+}
+.coupon-christmas img {
+    display: block;
+    max-width: 100%;
+}
+
+.coupon-top {
+    position: relative;
+}
+.coupon-top .go-check {
+    position: absolute;
+    top: 5.325rem;
+    width: 100%;
+    height: 10.5rem;
+}
+.coupon-top .share-btn {
+    position: absolute;
+    width: 14.125rem;
+    height: 2.525rem;
+    bottom: 2.575rem;
+    left: 50%;
+    margin: 0 0 0 -7.0625rem;
+}
+.coupon-top .wyf {
+    position: absolute;
+    width: 5.95rem;
+    right: 0;
+    top: 0.1rem;
+}
+
+.coupon-bottom {
+    height: 11rem;
+    background: url(../../img/christmas/02/bottom-bg.png) no-repeat bottom center;
+    background-size: 100% auto;
+}
+
+.coupon-banner {
+    position: relative;
+    height: 7.675rem;
+}
+
+.banner-btn {
+    position: absolute;
+    width: 100%;
+    height: 1.775rem;
+    bottom: 0;
+    font-size: 0;
+    text-align: center;
+}
+
+.banner-btn a{
+    display: inline-block;
+    height: 100%;
+}
+.banner-btn .boy {
+    width: 3.525rem;
+}
+.banner-btn .girl {
+    width: 3.35rem;
+}
+.banner-btn .life {
+    width: 4.025rem;
+}
+.banner-btn .kid {
+    width: 3.25rem;
+}
+.bottom-btn {
+    position: relative;
+    width: 13.725rem;
+    height: 1.725rem;
+    margin: 0.875rem auto 0;
+    font-size: 0;
+}
+.bottom-btn a{
+    position: absolute;
+    top: 0;
+    width: 8.2rem;
+    height: 100%;
+}
+.bottom-btn a.follow-yoho {
+    width: 5.275rem;
+    left: 0;
+}
+.bottom-btn a.download-yoho {
+    right: 0;
+}
+.modal {
+    position: fixed;
+    top: 0;
+    right: 0;
+    bottom: 0;
+    left: 0;
+    background: url(../../img/christmas/02/share.png) center top no-repeat;
+    -webkit-background-size: 100%;
+    -moz-background-size: 100%;
+    background-size: 100%;
+    display: none;
+}
+
+.has-done {
+    position: fixed;
+    top: 0;
+    right: 0;
+    bottom: 0;
+    left: 0;
+    background: rgba(0,0,0,0.4) url(../../img/christmas/02/11.png);
+    background-repeat: no-repeat;
+    background-size: 80% auto;
+    background-position: center center;
+    overflow: hidden;
+    display: none;
+}
+
+.dialog-box {
+    display: none;
+    position: fixed;
+    top: 0;
+    right: 0;
+    bottom: 0;
+    left: 0;
+    background: rgba(0,0,0,0.4);
+    z-index: 999;
+}
+
+.dialog-inner {
+    position: absolute;
+    width: 13.375rem;
+    height: 9.625rem;
+    top: 50%;
+    left: 50%;
+    margin: -4.8125rem 0 0 -6.6875rem;
+} 
+
+.dialog-inner img {
+    max-width: 100%;
+}  
+
+.dialog-inner span {
+    position: absolute;
+    width: 8.225rem;
+    height: 1.85rem;
+    bottom: 1.475rem;
+    left: 50%;
+    margin: 0 0 0 -4.1125rem;
+    cursor: pointer;
+}
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