html {
  overflow: hidden;
}
* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

.side {
  float: left;
  height: 90vh;
  width: 30%;
  background-color: rgb(202, 104, 69);
  border: 1px solid black;
  margin-bottom: 20px;
  overflow: scroll;
}
h1 {
  font-family: Arial, Helvetica, sans-serif;
  padding: 20px 10px;
  text-align: center;
}
i {
  text-align: center;
  align-items: center;
  margin-left: 10px;
  justify-content: center;
  color: white;
  margin-bottom: 20px;
}
a {
  text-decoration: none;
  color: black;
}
a:hover {
  color: rgb(241, 155, 213);
}
.main-content {
  float: right;
  width: 70%;
  margin-top: 50px;
  padding-left: 150px;
}
.main-content iframe {
  width: 100%;
  height: 80vh;
  padding-bottom: 30px;
  padding-right: 40px;
}
nav {
  display: flex;
  height: 80px;
  width: 100%;
  background: skyblue;
  align-items: center;
  justify-content: space-between;
  padding: 0 50px 0 100px;
  flex-wrap: wrap;
}
nav .logo {
  color: #fff;
  font-size: 30px;
  font-weight: 600;
}
nav ul {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
}
nav ul li {
  margin: 0 5px;
}
nav ul li a {
  color: #f2f2f2;
  text-decoration: none;
  font-size: 18px;
  font-weight: 500;
  padding: 8px 15px;
  border-radius: 5px;
  letter-spacing: 1px;
  transition: all 0.3s ease;
}
nav ul li a.active,
nav ul li a:hover {
  color: #111;
  background: #fff;
}
nav .menu-btn i {
  color: #fff;
  font-size: 22px;
  cursor: pointer;
  display: none;
}
input[type="checkbox"] {
  display: none;
}