index.css

body {
  margin: 0;
  padding: 0;
}

/* Variables */
div {
  background-color: rgb(66, 170, 244);
  font: 100% Helvetica, sans-serif;
}

/* Nesting */
nav {
  background-color: rgb(66, 170, 244);
  margin-bottom: 15px;
}
nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
nav li {
  display: inline-block;
  padding: 20px;
}
nav a {
  text-decoration: none;
  color: black;
  padding: 20px;
}

/* Modules */
span {
  background-color: rgb(237, 233, 100);
}

/* Mixin */
#mixin-test {
  height: 100px;
  width: 100px;
  background-color: DarkGray;
  box-shadow: 5px 5px 15px rgb(66, 170, 244);
  color: aqua;
  margin: 20px;
}

/* Extend/Inheritance*/
article, .message {
  border: 1px solid rgb(231, 87, 186);
  padding: 5px;
  color: rgb(16, 56, 36);
}

/* Operators */
.container {
  display: flex;
}

article {
  width: 220px;
  height: 220px;
}

article[role=main] {
  width: 80%;
}

/*# sourceMappingURL=index.css.map */