How to skew a ul li but not the <a> in ul li a?

Question

I have a ul li a menu and want to skew the ul li but not the a. The ul li skews, but the a won't skew to normal position.

header ul li {
    display: inline-block;
    background: #f5c207;
    padding: 10px 20px;
    margin-left: 10px;
    transform: skew(-20deg);
}
header ul li a {
    transform: skew(20deg);
}

<div id="top" class="container">
    <ul>
        <li><a href="">About us</a></li>
        <li><a href="">Other</a></li>
        <li><a href="">Contact</a></li>
    </ul>
</div>

Answer 1

You can't skew inline elements, try this:

header ul li {
    display: inline-block;
    background: #f5c207;
    padding: 10px 20px;
    margin-left: 10px;
    transform: skew(-20deg);
}
header ul li a {
    display:inline-block;
    transform: skew(20deg);
}

<header id="top" class="container">
    <ul>
        <li><a href="">About us</a></li>
        <li><a href="">Other</a></li>
        <li><a href="">Contact</a></li>
    </ul>
</header>