#www_tip_bak {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    margin-top: 0;
    background-color: rgba(0, 0, 0, .5);
    z-index: 9998;
    overflow: hidden;
    display: none;
  }
#www_tip {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0;
    margin: auto;
    width: 260px;
    height: 130px;
    z-index: 9999;
    background-color: #F8F8F8;
    border-radius: 2px;
    text-align: center;
    padding: 10px 8px;
    box-shadow: 0 0 6px rgba(0, 0, 0, .3);
}
#www_tip h4 {
    font-size: 16px;
    margin-bottom: 5px;
    padding-bottom: 5px;
    border-bottom: 1px dashed #555;
    font-weight: bold;
}
#www_tip .www {
    font-size: 14px;
    font-weight: bold;
    color: #00C;
    font-family: 微软雅黑;
}
#www_tip span {
    color: #C00;
}
#www_tip .text {
    font-size: 15px;
    margin: 4px 0 6px 0;
}
#www_tip a {
    background-image: linear-gradient(#0775c4, #0785D4, #0775c4);
    color: #fff;
    text-align: center;
    font-size: 16px;
    border-radius: 3px;
    padding: 3px 7px;
    position: absolute;
    bottom: 0;
    white-space: nowrap;
    transform: translate(-50%, -25%);
}
#www_tip a:hover {
    background-image: linear-gradient(#0785D4, #1795e4, #0785D4);
}