加载按钮样式

#wait {
    width: 40px;
    height: 40px;
    border-right: 3px solid #09F;
    border-top: 3px solid red;
    border-left: 3px solid yellow;
    border-bottom: 3px solid green;
    border-radius: 40px;
    -moz-border-radius: 40px;
    -webkit-border-radius: 40px;
    animation: rotation 0.6s linear 0s infinite;
    -moz-animation: rotation 0.6s linear 0s infinite;
    -webkit-animation: rotation 0.6s linear 0s infinite;
    position: fixed;
    left: 50%;
    top: 50%;
    z-index: 1;
    margin-top: -20px;
    margin-left: -20px;
    opacity: 0.9;
    display: none;
}