記個小筆記，:hover前不能有空格哦，不然會失效

.organization_detail_delete_user{
    position: absolute;
    top: 5px;
    right: 5px;
    cursor: pointer;
    color: #343a40;
}

.organization_detail_delete_user :hover{
    color: white;
}

向上面這樣就沒有效果，去掉空格就好了