html, body {
  height: 100%;
  width: 100%;
  font-size: 18px;
}

html {
  background-color: #e5fff4;
  font-family: 'Open Sans', Verdana, sans-serif;
}

body {
  padding: 5px;
}

.container {
  display: grid;
  grid-template-columns: auto auto;
  grid-template-rows: auto auto;
}

#banner {
  grid-row: 1 / 2;
  grid-column: 1 / 2;
  display: block;
  margin: auto;
  width: 80%;
}

.navigation {
  text-align: right;
  grid-row: 1 / 2;
  grid-column: 2 / 3;
  font-size: 16px;
}

.navigation li {
  display: inline-block;
  margin: 10px;
}

.navigation a {
  text-decoration: none;
  background-color: #007a8a;
  color: white;
}

.navigation a:hover {
  text-decoration: none;
  animation: hover_buttons 0.3s forwards;
}

ul {
  padding: none;
  list-style-type: none;
  
}

.content {
  grid-row: 2 / 3;
  grid-column: 1 / 3;
  margin: 50px;
  
}

@keyframes hover_buttons {
  0% {
    background-color: #007a8a;
    color: white;
    size: 100%
  }
  100% {
    size: 110%;
    background-color: #00eeff;
    color: black;
  }
}

#researchers {
  float: left;
  margin-right: 20px;
  width: 30%;
  height: auto;
}

img {
  border-radius: 10px;
}