ul { /* 取消ul預設的內縮及樣式 */
        margin: 0;
        padding: 0;
        list-style: none;
    }

ul.drop-down-menu {
    /*border: #ccc 1px solid;*/
    display: block;
    font-family: 'Open Sans', Arial, sans-serif; /* 設定字體 順序為由左到右*/
    font-size: 13px;
    position:absolute;
    z-index: 1;
}

ul.drop-down-menu li {
    position: relative;
    /*white-space: nowrap;*/
    border-right: #ccc 1px solid;
    z-index: 1;
}

ul.drop-down-menu > li:last-child {
    border-right: none;
    z-index: :1;
}

ul.drop-down-menu > li {
    float: left; /* 只有第一層是靠左對齊*/
}

ul.drop-down-menu a {
    background-color: #AABDE6;
    color: #1133AA;/*字的顏色*/
    display: block;
    padding: 0 30px;
    text-decorati.on: none;
    line-height: 40px;

}
ul.drop-down-menu a:hover { /* 滑鼠滑入按鈕變色*/
    background-color: #BDD2FF;
    color: #ffffff;
}
ul.drop-down-menu li:hover > a { /* 滑鼠移入次選單上層按鈕保持變色*/
    background-color: #BDD2FF;
    color: #ffffff;/*字變色*/
}
ul.drop-down-menu ul { /*隱藏次選單*/
    display: none;
}

ul.drop-down-menu li:hover > ul { /* 滑鼠滑入展開次選單*/
    display: block;
}