* {
    margin: 0;
    padding: 0;
}

.example p {
    margin: 20px 0;
}

body {
    font: normal 14px/1.5 Arial, Microsoft Yahei;
    color: #333;
}

a {
    display: inline-block;
    background: #61B3E6;
    color: #fff;
    padding: 8px 10px;
    border-radius: 4px;
    text-align: center;
    margin: 0 5px;
    line-height: 36px;
    font-size: 30px;
    text-decoration: none;
}

a.btn-warn {
    background: #F0AD4E;
}

a:hover {
    opacity: 0.8;
}

/*核心css*/
.wxtip {
    background: rgba(0, 0, 0, 0.8);
    text-align: center;
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: 998;
    display: none;
}

.wxtip-icon {
    width: 52px;
    height: 67px;
    background: url(http://caibaojian.com/d/uploads/2016/01/weixin-tip.png) no-repeat;
    display: block;
    position: absolute;
    right: 30px;
    top: 20px;
}

.wxtip-txt {
    padding-top: 107px;
    color: #fff;
    font-size: 16px;
    line-height: 1.5;
}

#content {
    display: flex;
    width: 100%;
    flex-direction: column;
    align-items: center;
}

.btn {
    margin-top: 24px;
}

.text {
    font-size: 32;
}