Menu with Sliding Selector on Hover

Made for some guy on reddit, not very elegant but it functions just fine once you set it up...

by Roberto Apasajja

HTML

<div class='menu-top'>
    <div class='menu-item a'>Home</div>
    <div class='menu-item b'>About</div>
    <div class='menu-item c'>News</div>
    <div class='menu-item d'>Why?</div>
    <div class='menu-bot'>
        <div class='menu-bar'></div>
    </div>
</div>

CSS

.menu-top {
    display: inline-block;
}
.menu-item {
    display: inline-block;
    background: lightBlue;
    margin: 0px;
    padding: 2px 8px;
    cursor: pointer;
}

.menu-bot {
    width: 100%;
    height: 4px;
    background: navy;
    margin-top: 2px;
    position: relative;
}

.menu-bar {
    position: absolute;
    height: 100%;
    left: 0;
    width: 55px;
    background: orange;
    
    -webkit-transition: 0.4s;
}

.menu-item.a:hover ~ .menu-bot .menu-bar {
    width: 55px;
    left: 0;
}

.menu-item.b:hover ~ .menu-bot .menu-bar {
    width: 56px;
    left: 59px;
}

.menu-item.c:hover ~ .menu-bot .menu-bar {
    width: 53px;
    left: 119px;
}

.menu-item.d:hover ~ .menu-bot .menu-bar {
    width: 54px;
    left: 176px;
}