body {
  font-family: "Lato", sans-serif;
}

.sidenav {
  height: 100%;
  width: 160px;
  position: fixed;
  z-index: 1;
  top: 0;
  left: 0;
  background-color: #111;
  overflow-x: hidden;
  padding-top: 20px;
}

.sidenav a {
  padding: 6px 8px 6px 16px;
  text-decoration: none;
  font-size: 25px;
  color: #818181;
  display: block;
}

.sidenav a:hover {
  color: #f1f1f1;
}

.main {
  margin-left: 160px; /* Same as the width of the sidenav */
  font-size: 28px; /* Increased text to enable scrolling */
  padding: 0px 10px;
}

@media screen and (max-height: 450px) {
  .sidenav {padding-top: 15px;}
  .sidenav a {font-size: 18px;}
}


.topnav {
  overflow: hidden;
  background-color: #333;
}

.topnav a {
  float: left;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 18px;
  text-decoration: none;
  font-size: 17px;
}

.topnav a:hover {
  background-color: #ddd;
  color: black;
}

.topnav a.active {
  background-color: #4CAF50;
  color: white;
}

.topnav-right {
  color:white;
  font-size: 20px;
  float: right;
  text-align: center;
  padding: 14px 18px;
}

    .container {
      width: 100%;
      height: 100%;
    }

    .leftpane {
        width: 25%;
        height: 50%;
        float: left;
        background-color: lightgray;
        border-collapse: collapse;
    }

    .middlepane {
        width: 50%;
        height: 100%;
        float: left;
        background-color: royalblue;
        border-collapse: collapse;
    }

    .rightpane {
      width: 25%;
      height: 100%;
      position: relative;
      float: right;
      background-color: yellow;
      border-collapse: collapse;
    }

    .toppane {
      width: 100%;
      height: 100px;
      border-collapse: collapse;
      background-color: #4da6ff;
    }



