if (matchMedia('only screen 。AtelierRoi"> if (matchMedia('only screen " />
アトリエロワ

head内のレスポンシブ分岐(metaタグなど)

800pxまでのviewportを指定

<script type="text/javascript">
   if (matchMedia('only screen and (max-width: 800px)').matches) {
    document.write('<meta name="viewport" content="width=800">');
}else{
  document.write('<meta name="viewport" content="width=device-width" />');
}
</script>

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