幅375pxのDiv(border-box)

幅744pxのDiv(border-box)

幅768pxのDiv(border-box)

幅980pxのDiv(border-box)

幅1024pxのDiv(border-box)

幅1080pxのDiv(border-box)

幅1200pxのDiv(border-box)

幅1280pxのDiv(border-box)