body {
  margin: 0;
  display: flex;
  flex-direction: column;
  font-family: Arial, Helvetica, sans-serif;
  background-color: white;
  min-height: 100vh;
  color: black;
  font-size: 20px;
}

.header-title {
  margin-left: 20%;
  margin-top: 64px;
}

.nav_bar {
  list-style-type: none;
  overflow: hidden;
  margin-right: 20%;
  font-size: 20px;
}

.nav_bar > li {
  float: right;
}

.nav_bar > li a {
  color: black;
  padding: 8px 10px;
  text-decoration: none;
}

.nav_bar > li a.active {
  background-color: inherit;
  color: #67bbb2;
  font-weight: bolder;
}

.nav_bar > li a:hover:not(.active) {
  color: #0000ff;
}

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

.project > a:hover {
  color: #009688ff;
}