body{
background: linear-gradient(90deg, yellow, red);
height: 100%;
margin: 20px;
}

hr{
	width: 50%;
	height: 3px;
	background-color: orangered;
	border-color: orangered;
	border-radius: 20px;
}



h3{
	background-color: whitesmoke;
	display: table;
	padding: 5px;
	border-radius: 20px;
}

#display{
	text-align: center;
	position: fixed;
	background-color: goldenrod;
	padding: 10px;
	font-weight: 900;
	margin: 10px;
	font-size: 19px;
	border-radius: 20px;
}


/* CSS */
.button-28 {
  appearance: none;
  background-color: transparent;
  border: 2px solid #1A1A1A;
  border-radius: 15px;
  box-sizing: border-box;
  color: #3B3B3B;
  cursor: pointer;
  display: inline-block;
  font-family: Roobert,-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol";
  font-size: 16px;
  font-weight: 600;
  line-height: normal;
  margin: 0;
  min-height: 10px;
  min-width: 0;
  outline: none;
  padding: 10px;
  text-align: center;
  text-decoration: none;
  transition: all 300ms cubic-bezier(.23, 1, 0.32, 1);
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
  width: 20%;
  will-change: transform;
}

.button-28:disabled {
  pointer-events: none;
}

.button-28:hover {
  color: #fff;
  background-color: #1A1A1A;
  box-shadow: rgba(0, 0, 0, 0.25) 0 8px 15px;
  transform: translateY(-2px);
}

.button-28:active {
  box-shadow: none;
  transform: translateY(0);
}

#topic_name{
	background-color: seagreen;
	color: white;
	margin-top: 50px;
	padding: 20px;
	width: 30%;
	border-radius: 20px;
	font-size: 20px;
}

pre{
	background-color: black;
	color: white;
	padding: 20px;
	font-weight: 800;
	width: 50%;
	border-radius: 20px;
	font-size: 20px;

}