.pcbr { display:block; }
.spbr { display:inline; }

#contents .product_right h3.mt { font-size: 4.5em; line-height: 1em; margin-bottom: 0.2em; margin-top: 0px; }
#contents .product_right .name.mt { font-size: 2.4em; line-height: 1.4em; margin-bottom: 0.3em; }

@media screen and (max-width: 599px) {
  
.pcbr { display:inline; }
.spbr { display:block; }
#contents .product_right h3.mt { font-size: 3.4em; line-height: 1.2em; margin-bottom: 0.4em; }
#contents .product_right .name.mt { font-size: 1.4em; line-height: 1em; margin-bottom: 1.5em; }

}