.close {
  font-size: calc(1.275rem + 0.3vw);
  font-weight: 700;
  line-height: 1;
  color: #000;
  text-shadow: 0 1px 0 #fff;
  opacity: 0.5;
}
.close:hover {
  color: #000;
  text-decoration: none;
}
.close:hover, .close:focus {
  opacity: 0.75;
}
.close:disabled, .close.disabled {
  pointer-events: none;
}

button.close {
  padding: 0;
  background-color: transparent;
  border: 0;
}

.embed-responsive {
  position: relative;
  width: 100%;
}
.embed-responsive::before {
  display: block;
  content: "";
}
.embed-responsive .embed-responsive-item,
.embed-responsive iframe,
.embed-responsive embed,
.embed-responsive object,
.embed-responsive video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.embed-responsive-21by9:before {
  padding-top: 42.85714%;
}

.embed-responsive-16by9:before {
  padding-top: 56.25%;
}

.embed-responsive-4by3:before {
  padding-top: 75%;
}

.embed-responsive-1by1:before {
  padding-top: 100%;
}

.sr-only,
.sr-only-focusable:not(:focus) {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}