Despite the name, :before
doesn’t actually set the layering position of elements, that’s set via z-index
. To position your :before element behind the H1 text, you need to add
z-index: -1;
to the :before element, like so:
.game-center-result .score h1:before {
content: "";
position: absolute;
display: block;
width: 100%;
height: 2px;
background: #44454d;
left: 0;
right: 0;
bottom: 60px;
margin: 0 auto;
z-index:-1;
}