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

body {
  border-top: 5px solid #f1bc31;
  border-bottom: 5px solid #f1bc31;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

p {
  font-size: 20px;
  line-height: 1.8;
}

/* for centering all-content */

.container {
  max-width: 1100px;
  margin: 0 auto;
}

.main-header {
  background-color: #202040;
  color: white !important;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.main-header span {
  font-style: italic;
}

.main-header h1 {
  padding: 20px;
  color: #f1bc31;
  font-style: italic;
}

nav a:link {
  margin: 20px;

  color: #202040;

  text-decoration: none;
}
nav a {
  color: #f1bc31;
}

.activate {
  background-color: #f1bc31;
  color: white;
  padding: 20px;
  border-radius: 5px;
}

nav a:hover {
  background-color: #f1bc31;
  color: white;
  padding: 20px;
  border-radius: 5px;
}

nav a:link:last-child {
  margin-right: 60px;
}

.secondary-header h2 {
  font-size: 40px;
  margin-top: 30px;
  margin-bottom: 30px;
  color: #f1bc31;
}

.secondary-header h2:first-letter {
  font-size: 68px;
  font-style: italic;
}

.secondary-header .author-img {
  border-radius: 50%;
  background-color: #f1bc31;
}

.secondary-header .author-flex {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 30px;
}

.secondary-header strong {
  color: #f1bc31;
  font-style: italic;
}

.secondary-header .python-img {
  margin-bottom: 20px;
}

article h3 {
  margin-top: 30px;
  margin-bottom: 10px;
  color: #f1bc31;
  font-weight: bold;
  font-size: 28px;
}

article li {
  margin: 20px;
  padding: 10px;
}

.mdn {
  color: #f1bc31;
  font-weight: bold;
  text-decoration: none;
}

aside {
  background-color: #202040;
  margin-left: 20px;
  width: 80%;
}

aside li {
  list-style-type: none;
  margin-left: 20px;
  padding: 16px;
}

aside h4 {
  font-weight: bold;
  color: #f1bc31;
  font-size: 30px;
  text-align: center;
  padding-top: 20px;
  padding-bottom: 20px;
}

.related-post {
  display: flex;
  align-items: center;
  justify-items: center;
  gap: 30px;
}

.related-post a {
  color: #f1bc31;
  text-decoration: none;
  font-weight: bold;
}

.related-post p {
  color: #f1bc31;
}

.related-post p::before {
  content: "--- ";
  color: #f1bc31;
}

.related-post p::after {
  content: " --- ";
  color: #f1bc31;
}

.article-aside-grid {
  display: grid;
  grid-template-columns: 700px auto;
  align-content: center;
  justify-content: center;
}

.article-aside-grid aritcle {
}

.article-aside-grid aside {
  align-self: center;
  justify-self: center;
  position: relative;
  top: -480px;
  left: 35px;
}

footer {
  background-color: #202040;
  padding: 40px;
  margin-top: 20px;
  text-align: center;
  font-size: 20px;
  color: #f1bc31;
  font-weight: bold;
}

.secondary-header h2::after {
  content: "TOP";
  font-size: 20px;
  padding: 5px;
  position: relative;
  top: -90px;
  right: -550px;

  background-color: firebrick;
}