.wy-nav-side {
  background-color: #333333;
}
.wy-nav-side img.logo {
  width: 50%;
  margin-left: 25%;
  text-align: center;
}

.wy-side-nav-search {
  margin-top: 1em;
  background-color: #555555;
}

.smile-logo {
  width: 80%;
  margin-top: 2em;
  margin-left: 10%;
}