用于 Safari 的 flexbox 行和列 ul li 菜单

Question

nav {
    font-family: Arial, sans-serif;
    border: 1px solid #ccc;
    border-right: none;
    width: 100%;
}
nav ul {
    display: flex;
    flex-pack: center
}
nav ul {
    margin: 0;
    padding: 0;
    display: -ms-flexbox;
    display: -webkit-flex;
    -webkit-flex-flow: row wrap;
    -moz-flex-flow: row wrap;
    -ms-flex-flow: row wrap;
    flex-flow: row wrap;
}

nav ul li {
    list-style: none;
    text-align: center;
    //border-left: 1px solid #fff;
    //border-right: 1px solid #ccc;
    background-color: #feaa38;
    background-image: -webkit-gradient(linear, left top, left bottom, from(#F5F5F5), to(#feaa38));
    background-image: -webkit-linear-gradient(top, #F5F5F5, #feaa38);
    background-image: -moz-linear-gradient(top, #F5F5F5, #feaa38);
    background-image: -o-linear-gradient(top, #F5F5F5, #feaa38);
    background-image: linear-gradient(to bottom, #F5F5F5, #feaa38);
    position: relative;
    -webkit-flex: 1 0 auto;
    -moz-flex: 1 0 auto;
    -ms-flex: 1 0 auto;
    flex: 1 0 auto;
}
nav ul li:hover {
    background-color: #feaa38;
} 
nav ul li a {
    text-decoration: none;
    color: #000;
    display: block;
    padding: 10px 0;
}
nav ul li:hover a {
    color: #FFF;
}
nav ul li ul {
    display: flex;
}
nav ul li ul {
    position:absolute;
    top:-999em;
    display: -ms-flexbox;
    display: -webkit-flex;
    -webkit-flex-flow: column wrap;
    -moz-flex-flow: column wrap;
    -ms-flex-flow: column wrap;
    flex-flow: column wrap;
    justify-content: space-around;
    width:100%;
}








nav ul li:hover > ul{
    top: auto;
    display: flex;
    flex-direction: column;
    margin: 0;
    padding: 0;
    z-index: 9998;
}
nav ul li ul li {
    background: #b56906;
}
nav ul li ul li a {
    text-decoration: none;
    color:#000000 !important;
    display: block;
    padding: 10px 0;
}
nav ul li ul li ul{
    position: absolute; 
    left: 100%;
    display: -webkit-flex;
    display: -moz-flex;
    display: -ms-flex;
    display: -o-flex;
    display: flex;
    -webkit-flex-flow: column wrap;
    -moz-flex-flow: column wrap;
    -ms-flex-flow: column wrap;
    flex-flow: column wrap;
    justify-content: space-around;
    width:100%;
}
nav ul li ul li:hover > ul{
    top: 0;
    display: flex;
    flex-direction: column;
    margin: 0;
    padding: 0;
    z-index: 9999;
}


nav ul li:Last-child {
    border-right: none;
}


<nav>
    <ul>
        <li>
            adasdasdasda
            <ul>
                <li>
                    12321321321
                 <ul>
                <li>
               12adas4asfsafds321321321
                </li>
                <li>
                    56345sdfdsfdsfdssd453543
                </li>
            </ul>
                </li>
                <li>
                    56345453543
                </li>
            </ul>
        </li>
        <li>
            fasffasf
        </li>
        <li>
            asdasdas
            <ul>
                <li>
                    12321321321
                </li>
                <li>
                    56345453543
                </li>
            </ul>
        </li>
    </ul>
</nav>

这是我在菜单上的 css 代码我正在添加动态菜单所以我使用 flex 框来使宽度统一即使我添加了动态菜单子菜单和另一个子菜单问题是当我在 sarafi 上尝试它时它不是做得很好。但是对于 chrome ie 和 mozilla 来说还可以。 safari 似乎有什么不同，它不起作用

Answer 1

我刚刚将我的导航更改为这个并且它起作用了

nav ul {
    margin: 0;
    padding: 0;
    display: -webkit-box;
    display: -moz-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: box;
    display: flex;
    -webkit-box-lines: multiple;
    -moz-box-lines: multiple;
    -o-box-lines: multiple;
    -webkit-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    -webkit-box-orient: horizontal;
    -moz-box-orient: horizontal;
    -o-box-orient: horizontal;
    -webkit-flex-direction: row;
    -ms-flex-direction: row;
    flex-direction: row;
}