#top, #bottom, #left, #right{
  background: #66cc66;
  position: fixed;
}
#left, #right {
	top: 0; bottom: 0;
	width: 20px;
}
#left {left: 0;}
#right {right: 0;}
#top, #bottom {
	left: 0; right: 0;
	height: 20px;
}
#top {top: 0;}
#bottom {bottom: 0;}

header, section{
  color: #66cc66;
}

.display-container{
  display: flex;
  justify-content: center;
  margin: 50px 20px;
}

.display-grid{
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin: 0 5%;
}

.display-item{
  display: flex;
  align-items: center;
  width: 45%;
  margin-bottom: 20px;
}

.display-element > a{
  align-self: center;
}

.element-title{
  font-size: 2vw;
}