.op3-element[data-op3-element-type="horizontalline"] {
    max-width: 75%;
    padding: 1em 0;

    .horizontal-line {
        margin: 0;
        padding: 0;
        height: 0;
        min-height: 0;
        border-top: 2px solid #555;
        border-bottom: 0;
        border-left: 0;
        border-right: 0;
    }
}