* {
  box-sizing: border-box;
  font-family: Arial, Helvetica, sans-serif;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  text-align: center;
}

/* Style the side navigation */
.sidenav {
  height: 100%;
  width: 100%;
  position: relative;
  z-index: 1;
  top: 0;
  left: 0;
  background-color: #555;
  overflow-x: hidden;
}


/* Side navigation links */
.sidenav a {
  color: white;
  padding: 16px;
  text-decoration: none;
  display: block;
  text-align: left;
}

/* Change color on hover */
.sidenav a:hover {
  background-color: #ddd;
  color: black;
}

/* Style the top navigation bar */
.topnav {
  overflow: hidden;
  background-color: #333;
}

/* Style the topnav links */
.topnav a {
  float: left;
  display: block;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

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

/* Container for flexboxes */
.row {
  display: -webkit-flex;
  display: flex;
}

.text {
  text-align: left;
}

/* Create three unequal columns that sits next to each other */
.column {
  padding: 0px;
}

/* Left sidenav column */
.column.left {
   -webkit-flex: 1;
   -ms-flex: 1;
   flex: 1;
}

/* Left and right column */
.column.right {
   -webkit-flex: 2;
   -ms-flex: 2;
   flex: 2;
}

/* Middle column */
.column.middle {
  padding: 10px;
  -webkit-flex: 3;
  -ms-flex: 3;
  flex: 3;
}

/* Style the footer */
.footer {
  background-color: #f1f1f1;
  padding: 10px;
}

/* Responsive layout - makes the three columns stack on top of each other instead of next to each other */
@media (max-width: 600px) {
  .row {
    -webkit-flex-direction: column;
    flex-direction: column;
  }
}