CODE EXAMPLE FOR HTML

css heading background line

h1 {
    position: relative;
    font-size: 30px;
    z-index: 1;
    overflow: hidden;
    text-align: center;
}
h1:before, h1:after {
    position: absolute;
    top: 51%;
    overflow: hidden;
    width: 50%;
    height: 1px;
    content: 'a0';
    background-color: red;
}
h1:before {
    margin-left: -50%;
    text-align: right;
}
.color {
    background-color: #ccc;
}