header, footer {
  position: fixed;
  height: 100px;
  text-align: center;
  width: 100%;
  background: #EEE;
  color: black;
  line-height: 6em;
}

header:before {
  content: "";
  position: absolute;
  height: 20px;
  background: #fff;
  z-index: 999;
  top: -20px;
  width: 100%;
  left: 0;
}

footer:before {
  content: "";
  position: absolute;
  height: 20px;
  background: #fff;
  z-index: 999;
  bottom: -20px;
  width: 100%;
  left: 0;
}

header {
  top: 0;
  margin-top: 20px;
}

footer {
  bottom: 0;
  margin-bottom: 20px;
}

article {
  margin: 120px 50px 0;

}

article p {
  margin: 20px 0;
}
span.red{
  color: blue;
}