.smallpanel {
    float:left;
    width:20%;
  }
  .largepanel {
    float:left;
    width:59%;
  }
  .fullpanel {
    width:99%;
  }
  .mediumpanel {
    float:left;
    width:30%;
  }
    .tinypanel {
    float:left;
    width:5%;
  }

  .blockbutton {
    display: block;
    width: 100%;
    border: none;
    background-color: #4CAF50;
    padding: 14px 28px;
    font-size: 16px;
    cursor: pointer;
    text-align: center;
  }

  /* Add a black background color to the top navigation */
.topnav {
  background-color: #333;
  overflow: hidden;
}

/* Style the links inside the navigation bar */
.topnav a {
  float: left;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

/* Change the color of links on hover */
.topnav a:hover {
  background-color: #ddd;
  color: black;
}

/* Add a color to the active/current link */
.topnav a.active {
  background-color: #4CAF50;
  color: white;
}