.navbar {
  margin-bottom: 0px;
}
.intro-bg {
  padding: 40px;
  display: block;
  height: auto;
  background-image: url("../images/sydney_1920_640.jpg");
  background-size: cover;
}
.wcvd_logo img {
  padding: 20px 0;
  width: 70%;
}
.wavd_logo img {
  padding: 20px 0 0;
  width: 70%;
}
@media screen and (min-width: 768px) {
  .wavd_logo img {
    padding: 80px 0 0;
  }
}
h1 {
  margin-bottom: 20px;
  font-weight: bold;
  color: #2b4d75;
}
h2 {
  font-weight: bold;
  color: #2b4d75;
}
h3 {
  margin-top: 80px;
  margin-bottom: 80px;
  text-align: center;
  font-weight: 400;
  font-size: 32px;
}
h4 {
  margin-top: 20px;
}

.urgent h2 {
  margin-bottom: 20px;
  padding: 0.5em 0.75em;
  line-height: 1.8;
  text-align: center;
  /* color: #ffffff; */
  /* background-color: #00897B; */
}

.btn-skin-anouncement {
  padding: 12px 12px;
  text-align: center;
  color: #ffffff;
  font-size: 18px;
  letter-spacing: 1px;
  background-color: #1e88e5;
  border-bottom: 3px solid #42a5f5;
  cursor: pointer;
  border-right: none;
  border-left: none;
  border-top: none;
  border-radius: 4px;
}
.btn-skin-anouncement:hover,
.btn-skin-anouncement:focus,
.btn-skin-anouncement:active,
.btn-skin-anouncement.active {
  text-decoration: none;
  color: #ffffff;
  background-color: #64b5f6;
  border-color: #64b5f6;
}

.btn-skin-resistration {
  padding: 12px 12px;
  text-align: center;
  color: #ffffff;
  font-size: 18px;
  letter-spacing: 1px;
  background-color: #ff7043;
  border-bottom: 3px solid #ff8a65;
  cursor: pointer;
  border-right: none;
  border-left: none;
  border-top: none;
  border-radius: 4px;
}
.btn-skin-resistration:hover,
.btn-skin-resistration:focus,
.btn-skin-resistration:active,
.btn-skin-resistration.active {
  text-decoration: none;
  color: #ffffff;
  background-color: #ffccbc;
  border-color: #ffccbc;
}

.sponsors-box {
  display: -webkit-flex; /* Safari用 */
  display: flex;
  -webkit-justify-content: center; /* Safari用 */
  justify-content: center;
  -webkit-align-items: center; /* Safari用 */
  align-items: center;
  margin-top: 40px;
  padding: 40px;
  height: 160px;
}
.sponsors-box img {
  max-width: 200px;
}

@media screen and (min-width: 768px) {
  .sponsors-box {
    height: 160px;
  }
}

@media print {
  .program-title {
    margin-top: 20px !important;
    color: #00695c !important;
    font-size: 24px !important;
    line-height: 120% !important;
    border-bottom: 1px dotted #00695c !important;
  }
}