/* PC用　769px以上*/
@import url(pc53.css) screen and (min-width: 769px);

/* タブレット用　768px以下*/
@import url(tablet53.css) screen and (max-width: 768px);

/* スマホ用（iPhone横）　480px以下*/
@import url(smart53.css) screen and (max-width: 480px);