.youtube {
  position: relative;
  width: 100%;
  height: 0;
  padding-top: 56.25%; }
  .youtube iframe {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%; }

#contents .top {
  margin-bottom: 20px; }
  #contents .top img {
    margin-bottom: 20px; }
  #contents .top p,
  #contents .top h2 + p {
    line-height: 1.75;
    font-size: 14px;
    margin-bottom: 2em; }
  #contents .top h3 {
    font-size: 16px;
    font-weight: bold;
    margin: 0;
    margin-bottom: 0.5em;
    color: #00a99d; }
#contents .zeh {
  margin-top: 20px;
  margin-bottom: 2em; }
  #contents .zeh h3 {
    font-size: 16px;
    font-weight: bold;
    margin: 0;
    margin-bottom: 0.5em;
    color: #00a99d; }
  #contents .zeh table {
    width: 100%;
    border-left: 1px solid #333;
    border-top: 1px solid #333;
    text-align: center;
    font-size: 12px !important;
    margin-bottom: 0.5em;
    box-sizing: border-box; }
    #contents .zeh table th,
    #contents .zeh table td {
      padding: 0.5rem;
      border-right: 1px solid #333;
      border-bottom: 1px solid #333; }
    #contents .zeh table th {
      text-align: center;
      background-color: #efefef; }
  #contents .zeh ul {
    list-style: disc inside;
    font-size: 14px; }
    #contents .zeh ul li {
      line-height: 1.85; }
#contents .zeh-kaino {
  width: 100%;
  color: #fff;
  background-color: darkorange;
  font-size: 105%;
  text-align: center;
  font-weight: bold;
  padding: 0.75em;
  border-radius: 10px; }
#contents .kaaa {
  background-color: #cdcdcd !important; }
#contents .kwhite {
  background-color: #fff !important; }
#contents .button {
  overflow: hidden; }
  #contents .button a {
    display: block;
    background-color: #20A99D;
    padding: 0.75em 1em;
    margin: 1em 0 0;
    font-size: 15px;
    color: #fff;
    text-decoration: none;
    width: 45%;
    text-align: center;
    border: 2px solid #20A99D; }
    @media (max-width: 768px) {
      #contents .button a {
        width: 100%; } }
    #contents .button a:hover {
      color: #20A99D;
      background-color: #fff;
      transition: 0.3s; }