body {
  font-family: 'Segoe UI';
  margin: 0 auto;
  padding: 0 auto;
}

header {
  background-color: white;
  color: #D96D00;
  text-align: center;
  padding: 5px;
}

ul {
  text-align: center;
}

aside {
  background-color: #D96D00;
  color: white;
  text-align: center;
  padding: 5px;
}

article
{
     padding:5px;
    text-align: center;
    margin-top:5px;
}

nav {
  line-height: 30px;
  background-color: #eeeeee;
  height: 100%;
  width: 200px;
  float: left;
  padding: 5px;
}

section {
  width: 350px;
  float: left;
  padding: 10px;
  margin-top:5px;
}

footer {
  background-color: white;
  color: dimgray;
  clear: both;
  text-align: center;
  padding: 5px;
}

.parent {
  background: white;
  margin: 20px;
  position: relative;
  height: 90%;
}

.center {
    position: absolute;
    margin: auto;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}