h2.l_ttl:before {
    width: 15px;
    background: #008000;
}

@media screen and (max-width: 750px) {
    h2.l_ttl:before {
        width: 8px;
    }
}

@media screen and (max-width: 750px) {
    .figure_column01_img img {
        width: 95%;
    }
}