/*
====================================================================================================================================================================
                                                    Start Content Properties
====================================================================================================================================================================
*/

.github {
  padding: 16px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 20px;
  margin: 4px 2px;
  transition-duration: 0.4s;
  cursor: pointer;
  background-color: #172035;
  color: white;
  border: 3px solid #848482;
}

.github:hover {
  background-color: #09568d;
}

.container {
  height: 1px;
  position: relative;
  margin-bottom: 100px;
}

.center {
  margin: 0;
  position: absolute;
  top: 50%;
  left: 50%;
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}

.row {
  display: flex;
  flex-wrap: wrap;
  padding: 0 4px;
}

.column {
  flex: 50%;
  padding: 0 4px;
}

.column img {
  margin-top: 8px;
  display: block;
  vertical-align: middle;
  width: 100%;
  height: auto;
  transition: .5s ease;
  backface-visibility: hidden;
}

.container-square {
  display: inline-block;
  position: relative;
  width:30%;
  margin: 15px;
}

.middle {
  transition: .5s ease;
  opacity: 0;
  margin: 0;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  text-align: center;
}

.container-square:hover img {
  opacity: 0.3;
}

.container-square:hover .middle {
  opacity: 1;
}

.crit-depth-button {
  padding: 8px 16px;
  text-align: center;
  text-decoration: none;
  display: block;
  font-size: 20px;
  margin: 0 auto;
  transition-duration: 0.4s;
  cursor: pointer;
  background-color: #172035;
  color: white;
  border: 3px solid #848482;
  border-radius: 8px;
}

.crit-depth-button:hover {
  background-color: #09568d;
}

.poisson-model-button {
  padding: 8px 16px;
  text-align: center;
  text-decoration: none;
  display: block;
  font-size: 20px;
  margin: 0 auto;
  transition-duration: 0.4s;
  cursor: pointer;
  background-color: #172035;
  color: white;
  border: 3px solid #848482;
  border-radius: 8px;
}

.poisson-model-button:hover {
  background-color: #09568d;
}

.ndvi-averaging-button {
  padding: 8px 16px;
  text-align: center;
  text-decoration: none;
  display: block;
  font-size: 20px;
  margin: 0 auto;
  transition-duration: 0.4s;
  cursor: pointer;
  background-color: #172035;
  color: white;
  border: 3px solid #848482;
  border-radius: 8px;
}

.ndvi-averaging-button:hover {
  background-color: #09568d;
}


/*
====================================================================================================================================================================
                                                    End Content Properties
====================================================================================================================================================================
*/