// 本文エリア
.block-editor-writing-flow {

    // ガイド線を表示する
    [data-type="core/group"],
    [data-type="core/columns"] {

        &:not(.has-background).has-child-selected {

            &::after {
                border: dashed 1px $color_guide;
            }
        }
    }

    .is-root-container > [data-type="core/group"],
    .is-root-container > [data-type="core/columns"] {

        &::after {
            top: -8px !important;
            right: -8px !important;
            bottom: -8px !important;
            left: -8px !important;
        }
    }
}