:root {
  --primary-color: #09c;
}

body, html {
  font-family: Arial, Helvetica, sans-serif;
}

.title a {
  color: black;
  text-decoration: none;
}

.nav-bar {
  background-color: var(--primary-color);
  padding: 5px;
}

.nav-bar a {
  color: white;
  padding: 7px;
  margin: 0px 3px;
}

a {
  color: var(--primary-color);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* containers */

.container {
  width: 90%;
  margin-left: auto;
  margin-right: auto;
}

@media only screen and (min-width: 33.75em) {  /* 540px */
  .container {
    width: 80%;
  }
}

@media only screen and (min-width: 60em) { /* 960px */
  .container {
    width: 75%;
    max-width: 60rem;
  }
}