display.css

* {
  margin: 0;
  padding: 0;
  }

body {
  font-size: 10px;
  font-family: Helvetica, Arial, sans-serif;
  background-color: #f15a22;
}

#wrapper {
  display: flex;
  position: relative;
  align-items: center;
  justify-content: space-around;
  width: 100%;
  min-width: 960px;
  height: 100vh;
}

#feature_area ul {
  display: flex;
  justify-content: space-between;
}

#feature_area li {
  display: block;
  width: 240px;
  height: 100px;
  list-style-type: none;
  border: none;
  outline: none;
  background-color: #c1a173;
}

#feature_area li + li {
  border-left: 20px solid #f15a22;
}

#feature_area a {
  display: block;
  height: inherit;
  font-size: 2.0rem;
  line-height: 100px;
  color: #fffffb;
  text-align: center;
  text-decoration: none;
}

#feature_area li:hover {
  background-color: #2468a2;
}

footer {
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 10%;
  padding: 20px 0;
  text-align: center;
}

footer p,
footer a {
  font-size: 1.6rem;
  color: #fffffb;
}