子菜单链接后的 fontawesome 图标无法正常工作

Question

在我的侧边栏上，我有一个 link 名为多级菜单

每位家长 link 在 css 中都有一个右箭头图标。

点击打开后，它会变成人字形向下图标。

我遇到的问题是在我的子菜单 link 上有父级 class 当 link 打开

问题什么是最好的解决方案，以便在我的子菜单 links 打开时添加 V 形向下图标当前子菜单 link只能让雪佛龙正确

Codepen 示例 Click Here

/* Sidebar Menu */

#menu, 
#menu ul, 
#menu li {
    padding: 0;
    margin: 0;
    min-height: 100%;
    list-style: none;
}

#menu {
    margin-bottom: 25px;
}

#menu > li {
    position: relative;
}

#menu li a {
    text-decoration: none;
    display: block;
    padding: 10px;
    cursor: pointer;
    color: #aaaaaa;
    border-bottom: 1px solid #2d2d2d;
}

#menu li a i {
    color: rgba(170, 170, 170, 0.7);
    font-size: 16px;
}

#menu > li > a {
    color: #aaaaaa;
    font-size: 14px;    
    padding-left: 13px;
}

#menu > li > a:hover {
    background-color: #444444;
}

#menu > li > a > span {
    display: none;
    margin-left: 8px;
}

#menu li li a {
    border-bottom: none !important;
}

#menu li li a:hover {
    color: #aaaaaa;
    background-color: #1e1e1e;
}

/*
#menu li li a:before {
    content: "\f101";
    font-size: 14px;
    font-family: FontAwesome;
    margin-left: 10px;
    margin-right: 10px;
    transition: margin ease 0.5s;   
}
*/
#menu li li a:hover:before {
    margin-right: 20px;
}

#menu > li.active > a {
    color: #aaaaaa;
    background: #242424;
}

#menu li.active li a {
    color: #aaaaaa;
}

#menu li li.active > a:last-child {
    color: #aaaaaa;
}

#menu li li.active a:last-child:before {
    margin-left: 20px;
    margin-right: 10px;
}

#menu > li > ul {
    position: absolute;
    left: 50px;
    top: 0px;
    width: 210px;
    background-color: #313131;
    visibility: hidden;
}

#menu li ul {
    overflow: hidden;
}

#menu li li a.parent:after, #column-left.active #menu > li a.parent:after {
    font-family: FontAwesome;
    content: "\f105";
    float: right;
    margin-right: 8px;
}

#menu li li.open > a.parent:after, #column-left.active #menu > li.open > a.parent:after {
    font-family: FontAwesome;
    content: "\f107";
    float: right;
    margin-right: 8px;
}

#menu li ul a {
    padding-left: 20px;
}

#menu li li ul a {
    padding-left: 40px;
}

#menu li li li ul a {
    padding-left: 60px;
}

#menu li li li li ul a {
    padding-left: 60px;
}

#menu li li li a.parent:after, #column-left.active #menu > li a.parent:after {
    font-family: FontAwesome;
    content: "\f105";
    float: right;
    margin-right: 8px;
}

#menu li li li.open > a.parent:after, #column-left.active #menu > li.open > a.parent:after {
    font-family: FontAwesome;
    content: "\f107";
    float: right;
    margin-right: 8px;
}

Answer 1

问题已解决

我不得不去 ad ul li

#menu li ul li a.parent:after, #column-left.active #menu > li ul li a.parent:after {
    font-family: FontAwesome;
    content: "\f105";
    float: right;
    margin-right: 8px;
}

#menu li ul li.open > a.parent:after, #column-left.active #menu > li ul li.open > a.parent:after {
    font-family: FontAwesome;
    content: "\f107";
    float: right;
    margin-right: 8px;
}

子菜单链接后的 fontawesome 图标无法正常工作

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css

font-awesome