body {
    font-family: "Open Sans", sans-serif;
}
.title-block {
    display: inline-block;
    font-size: 2rem;
    position: relative;
}
.title-block:after {
    content: "";
    height: 3px;
    width: 39px;
    background: #ec0000;
    position: absolute;
    bottom: 0;
    left: 0;
}