Boxes 2

by Matthew Day

HTML

<ul class="flapper-box"></div>
    <li class="letter">a</div>
    <div class="letter">b</div>
    <div class="letter">c</div>
    <div class="letter">d</div>
    <div class="letter">e</div>
    <div class="letter">f</div>
</ul>

CSS

* {
    box-sizing: border-box;
}

.flapper-box {
    height: 100px;
    width: 100px;
    background-color: black;
}

.letter {
    position: relative;
    top: 50%;
    transform: translateY(-50%); 
    float: left;
    color: white;
}

.letter:after {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    border-top: 2px solid rgba(255,255,255,.7);
}