body,
html {
  padding: 0;
  margin: 0;
  font-family: "Nunito Sans", sans-serif;
}

.navbar {
  width: 250px;
  height: 100%;
  position: fixed;
  overflow-y: auto;
  overflow-x: hidden;
  margin-top: -20px;
  z-index: 2;
}

h1#title {
  text-align: center;
  font-weight: 600;
  font-size: 2.5rem;
  color: #3498db;
}

.title {
  font-size: 1.9rem;
  margin-bottom: 10px;
}

.main-section p,
.main-section ul li {
  font-size: 1.2rem;
  padding: 10px;
  padding-left: 15px;
  text-align: justify;
}

.docs {
  margin-left: 250px;
  margin-top: -60px;
  padding: 20px;
  padding-left: 40px;
}

.navbar a {
  text-decoration: none;
  color: #27ae60;
  font-size: 1.3rem;
}

a {
  text-decoration: none;
}

header ul {
  display: inline;
}

.navbar li {
  border-bottom: 1px solid navy;
  list-style-type: none;
  padding: 7px;
  padding-left: 20px;
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: 10px;
  margin-top: 10px;
  margin-left: 10px;
  margin-right: 10px;
}

code {
  background-color: #ecf0f1;
  border: 1px solid #ecf0f1;
  box-shadow: (5px 2px #ecf0f1);
  padding: 3px;
  border-radius: 7px;
  color: #c0392b;
  font-weight: 500;
  font-size: 1.4rem;
}

span#menu {
  visibility: hidden;
  position: sticky;
  top: 0;
  left: 0;
  margin-left: 0;
  font-size: 2rem;
  padding: 10px;
}

#last-link {
  margin-bottom: 50px;
}

span#menu:hover {
  cursor: pointer;
}

@media only screen and (max-width: 900px) {
  .navbar {
    /* visibility: hidden; */
    background: #fff;
    z-index: 1000;
    margin-top: 5px;
    border-radius: 7px;
  }

  span#menu {
    visibility: visible;
  }

  .docs {
    margin-left: 5px;
  }
}