body {
  margin: 0;
  color: #212121;
}

.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  height: 100%;
  width: 20ch;
  border-right: 1px solid #f2f2f2;
}

.sidebar .items {
  display: -webkit-flex;
  display: flex;
  height: 100%;
  -webkit-flex-direction: column;
          flex-direction: column;
  -webkit-justify-content: flex-start;
          justify-content: flex-start;
}

.sidebar .item {
  line-height: 2em;
}

.sidebar .end {
  margin-top: auto;
}

.sidebar .end a {
  padding: 2em 0;
}

.sidebar a,
.sidebar span {
  display: block;
  text-align: center;
  text-transform: uppercase;
  font-weight: bold;
  letter-spacing: 0.2rem;
  text-decoration: none;
  color: #212121;
}

.sidebar a:hover {
  color: #0fa0ce;
}

.sidebar span {
  font-size: 1.2rem;
  margin: 2em 0;
}

.container {
  margin-left: 20ch;
  height: 100vh;
}