body {
  font-family: Arial, sans-serif;
  max-width: 70%;
  min-width: 500px;
  margin: 40px 150px;
  line-height: 1.6;
}

h1 {
  color: #333;
}

.main-content {
  position: static;
  padding-left: 20px;
  z-index: 1;
  padding-top: 20px;
  font:
    1.2em "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

/* The sidebar menu, visible on all pages */
.sidenav {
  height: 100%;
  width: 15%;
  min-width: 150px;
  position: fixed;
  z-index: 1;
  top: 0;
  left: 0;
  overflow-x: hidden;
  padding-top: 60px;
}

.sidenav a {
  padding: 0px 0px 0px 16px;
  text-decoration: none;
  font-size: 25px;
  color: #151515;
  display: block;
}

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