.blog-footer {
    width: 100%;
    margin-top: 5px;
    box-shadow: 0 -0.125rem 0.25rem #7d7d7d;
    position: absolute;
    bottom: 0;
    left: 0;
}

.footer_main {
    min-height: 3vh;
}

.footer_copy_right {
    color: white;
    padding-bottom: 3vh;
}

#page_top_btn_area {
    position: fixed;
    /* フッター広告用に少し高めにする */
    bottom: 20vh;
    right: 2%;
}

#page_top_btn {
    color: gray;
}

#fa_arrow_alt_circle_up {
    font-size: 40px;
    background-color: rgb(238, 238, 238);
    width: 40px;
    height: 40px;
    border: 2px solid rgb(238, 238, 238);
    border-radius: 50%;

}

#footer_page_top_button {
    display: none;
    color: white;
}


/* タブレット用 */
@media (max-width: 1020px) and (min-width: 768px) {
    #page_top_btn_area {
        display: none;
    }
    #footer_page_top_button {
        display: block;
    }
}

/* スマホ用 */
@media (max-width: 767px) {
    #page_top_btn_area {
        display: none;
    }
    #footer_page_top_button {
        display: block;
    }
}