body {
font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", YuGothic, "ヒラギノ角ゴ ProN W3", Hiragino Kaku Gothic ProN, Arial, "メイリオ", Meiryo, sans-serif;
}

/* 関連商品見出し用CSS */
.RelatedProduct_title{
    font-weight: bold;
    font-size: 2rem;
    border-top:1px solid #ccc;
    border-bottom:1px solid #ccc;
    padding:.5em;
    margin: 2em 0 1em;
}

h2 {
  position: relative;
  padding: 0.6em;
  background: -webkit-repeating-linear-gradient(-45deg, #fff5df, #fff5df 4px,#ffe4b1 3px, #ffe4b1 8px);
  background: repeating-linear-gradient(-45deg, #fff5df, #fff5df 4px,#ffe4b1 3px, #ffe4b1 8px);
  border-radius: 7px;
  color: #de5e50;
  margin-bottom: 20px;
}

h2:after {
  position: absolute;
  content: '';
  top: 100%;
  left: 30px;
  border: 15px solid transparent;
  border-top: 15px solid #f3f3f3;
  width: 0;
  height: 0;
}

h4 {
    padding: 1.65rem 2rem;
    color: #e5004f;
    background-color: transparent;
    background-image: linear-gradient(45deg, #f9dbdc 25%, transparent 25%, transparent 75%, #f9dbdc 75%, #f9dbdc),
      linear-gradient(45deg, #f9dbdc 25%, transparent 25%, transparent 75%, #f9dbdc 75%, #f9dbdc);
    background-size: 40px 40px;
    background-position: 0 0, 20px 20px;
  }