@media screen and (max-width: 640px) {
  section.gallery {
    width: 100%;
    padding-top: 13.33333333vw;
    background-color: #d3dcdd;
  }
  section.gallery .inner {
    width: 100%;
    -webkit-box-sizing: border-box;
            box-sizing: border-box;
    padding-bottom: 20vw;
  }
  section.gallery .inner h2 {
    font-size: 5.86666667vw;
    letter-spacing: 0.2em;
    text-align: center;
    color: #333333;
    padding-top: 10.66666667vw;
    margin-bottom: 10vw;
  }
}
@media screen and (min-width: 641px) {
  section.gallery {
    width: 100%;
    background-color: #d3dcdd;
    padding-top: 100px;
    padding-bottom: 75px;
  }
  section.gallery .inner {
    width: 1200px;
    margin-left: auto;
    margin-right: auto;
  }
  section.gallery .inner h2 {
    font-size: 40px;
    letter-spacing: 0.2em;
    text-align: center;
    color: #333333;
    padding-top: 105px;
    margin-bottom: 55px;
  }
  section.gallery .inner span.load {
    display: block;
    width: 320px;
    height: 40px;
    font-size: 14px;
    letter-spacing: 0.05em;
    background-color: #333333;
    color: #ffffff;
    text-align: center;
    line-height: 40px;
    margin-left: auto;
    margin-right: auto;
    -webkit-box-sizing: border-box;
            box-sizing: border-box;
    border: 1px solid #333333;
    -webkit-transition-duration: 0.2s;
            transition-duration: 0.2s;
    -webkit-transition-timing-function: linear;
            transition-timing-function: linear;
    -webkit-transition-property: background-color, color;
    transition-property: background-color, color;
    will-change: background-color, color;
    cursor: pointer;
  }
  section.gallery .inner span.load:hover {
    background-color: #ffffff;
    color: #333333;
  }

}