h1.post_titles {
    font-size: 26px;
    text-transform: uppercase;
    font-weight: 500;
} 
h1.post_titles::before {
    content: "";
    width: 11%;
    display: block;
    position: relative;
    height: 5px;
    background: #c7233b;
    margin-bottom: 10px;
}