.column_art_head_ttl{
    font-weight: bold;
    margin-bottom:3rem;
}
a.btn.btn_secondary{
    span{
        font-size: 2rem;
    }
}
@media screen and (max-width:768px){
    .breadcrumb .breadcrumb_inner{
        display: flex;
        flex-wrap: nowrap;
        white-space: nowrap;
        overflow: hidden;
    }

    a.btn.btn_secondary, a.btn.btn_primary{
        margin-bottom: 20px;
        width: 100%;
        span{
            font-size: 2rem;
        }
    }
}