.overlay-hagebau, .overlay-hagebau-content, .overlay-hagebau-close {
  box-sizing: border-box;
}

.overlay-hagebau {
  background-color: rgba(0, 0, 0, .8);
  bottom: 0;
  left: 0;
  position: fixed;
  right: 0;
  top: 0;
  -webkit-transition: background-color 2s;
  -moz-transition: background-color 2s;
  transition: background-color 2s;
  z-index: 10000;
}

.overlay-hagebau-content {
  background-color: #FFF;
  border-radius: 5px;
  height: calc(100% - 60px);
  margin-top: 30px;
  margin-left: auto;
  margin-right: auto;
  max-width: 1320px;
  position: relative;
  padding: 10px;
}

.overlay-hagebau-content iframe {
  border: 0;
  height: 100%;
  width: 100%;
}

.overlay-hagebau-close {
  background-color: #FFF;
  border-radius: 10px;
  color: #000;
  cursor: pointer;
  display: block;
  font-family: Arial;
  font-size: 20px;
  height: 20px;
  line-height: 20px;
  margin: -12px;
  position: absolute;
  right: 0;
  text-align: center;
  text-decoration: none;
  top: 0;
  width: 20px;
}

.overlay-hagebau-close:hover {
  color: #000;
  text-decoration: none;
}