.title_area a span {
    display: none!important;
}
.title_area a {
    width: 100%;
    height: 40px;
    background-image: url(https://img21.shop-pro.jp/PA01456/732/etc/logo_taikai.png?cmsp_timestamp=20200914105415);
    background-size: 200px;
    background-repeat: no-repeat;
    background-position: center;
    display: block;
}