.ul_version_area {
    position: absolute;
    width: 100px;
    background: #ffffff;
    box-shadow: 0px 0px 8px 3px #d5d1d1;
    border-radius: 4px;
    padding: 30px;
    transition: all 0.5s;
    right:0;

    li {
        cursor: pointer;
        padding: 8px;
        &:hover {
            background-color: #5eb95e;
            color: white;
        }
    }
    a {
        position: absolute;
        right: -6px;
        top: 4px;
        width: 20px;
        height: 20px;
        text-align: center;
        text-decoration: none;
        border-radius: 50% 50%;
        line-height: 16px;
        cursor: pointer;
    }
}

.hidden,.hide{
    display:none;
}