#liste_blog .panel .panel-heading, #article_blog .panel .panel-heading {
    height:300px; 
    background-color:transparent;
    background-size: cover;
    background-position: center;
}
#liste_blog .panel .panel-footer {
    color: #FFF;
    font-weight: 500;
    font-size: 16px;
    text-transform: initial;
    background-color: #FCC917;
    font-family: 'Roboto';
}