body{
    /* overflow-y:hidden; */
}
#youtube{
    margin-top:200px;
    text-align:center;
}

#content-all {
    display: flex;
    align-items: stretch;
    margin-top:80px;
}

#sidebar {
    width: 250px;
    /* height: 90vh; */
    color: white;
    transition: 0.7s;
    min-height: 360px;/*因為使用js判斷footer高度 所以在footer超出頁面時 若不設定最小高度 sidebar會太短 所以給個最小高度*/
}
#content-left{
    background-color: 	#006000;
    min-height: 550px;/*盡量避免影片視窗超出範圍*/
}

#sidebar.active {
    margin-left: -185px;
}

#content-right {
    width: 100%;
    /* height: 90vh; */
    text-align: center;
    /* padding: 30px 0px; */
}

#collapse-btn {
    position: relative;
    left: 200px;
    background-color: 	#006000;
    color: white;
    border: none;
    font-size: 30px;
    padding: 5px;
}


#sidebar p {
    text-align: center;
    font-size: 30px;
    font-style: italic;
    padding: 10px;
}

#sidebar ul li a {
    padding: 10px;
    font-size: 20px;
    display: block;
    text-decoration: none;
    color: white;
}

#sidebar ul li a:hover {
    color: black;
    background: #fff;
}


ul ul li a {/*被展開的list*/
    background-color: #014701;
    font-size: 20px;
    /* font-style: italic; */
}