* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  font-family: Poppins;
}
body {
  display: flex;
}

/* NAVBAR */
#navbar {
  width: 30%;
  text-align: center;
  border-right: solid 4px #777;
  height: 100vh;
  overflow-y: auto;
  position: fixed;
  top: 0;
  left: 0;
}
#navbar header h1 {
  font-size: 30px;
  border-bottom: 1px solid #777;
  position: fixed;
  height: 50px;
  width: 30%;
  background: #fff;
  border-right: solid 4px #777;
}
.nav-links {
  margin-top: 50px;
}
#navbar a {
  display: block;
  border-bottom: 1px solid #777;
  color: #333;
  padding: 10px 0;
  text-decoration: none;
}
#navbar a:hover {
  font-size: 1.2em;
}
#navbar h1:hover {
  font-size: 3em;
}
@media (max-width: 700px) {
  body {
    display: block;
  }
  #navbar {
    display: block;
    height: 200px;
    width: 100%;
    background: #fff;
    border-right: none;
    border-bottom: 2px solid #777;
    position: absolute;
  }
  #navbar header h1 {
    width: 100%;
    border-right: none;
    position: absolute;
  }
  #navbar a {
    font-size: 13px;
  }
}

/* MAINDOC */
#main-doc {
  margin-left: 30%;
}
.main-doc-container {
  margin: 50px auto;
  width: 70%;
  display: block;
}
.main-section {
  margin: 0 0 40px;
}
.main-section header {
  margin-bottom: 10px;
}
.main-section p {
  margin: 20px 10px;
  color: #333;
}
.main-section img {
  width: 100%;
  margin: 20px 0;
}
.main-section ul {
  margin: 30px 50px;
}
.main-section .blockquote {
  background: #eee;
  margin: 50px 20px;
  padding: 10px 20px;
  border-radius: 5px;
}
@media (max-width: 700px) {
  #main-doc {
    margin: 210px auto 0;
    width: 100%;
  }
  .main-doc-container {
    width: 90%;
  }
}