img.ocean {
    max-width: 230px;
    height: auto;
    float: left;
}

body {
    padding: 25px;
    background-color: black;
    color: white;
    font-size: 25px;
  }
  
  .dark-mode {
    background-color: black;
    color: white;
  }
  .light-mode {
    background-color: white;
    color: black;
  }
  .row{clear:both}

.column{
    width: 50%;
    float: left;
}
.fullcolumn{
  float: left;
}

.dropbtn {
    background-color: #4CAF50;
    color: white;
    font-size: 19px;
    padding-top: 16px;
    padding-bottom: 16px;
    border: none;
    cursor: pointer;
    padding-left: 22px;
    padding-right: 22px;

  }

  .dropdown {
    position: relative;
    display: inline-block;
  }
  
  .dropdown-content {
    display: none;
    position: absolute;
    background-color: #f9f9f9;
    min-width: 120px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
  }
  
  .dropdown-content a {
    color: black;
    padding: 12px 12px;
    text-decoration: none;
    display: block;
    font-size:medium;
  }
  
  .dropdown-content a:hover {background-color: #f1f1f1}
  
  .dropdown:hover .dropdown-content {
    display: block;
  }
  
  .dropdown:hover .dropbtn {
    background-color: #4CAF50;
  }
  .button {
border: none;
color: white;
padding: 7px 15px;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: 16px;
margin: 4px 2px;
cursor: pointer;
background-color: #4CAF50;
border-radius: 12px;
}