.text-center {
	text-align: center;
}
.container {
	width: 274px;
  margin-left: auto;
  margin-right: auto;
  border: 2px solid black;
  padding: 0.5em;
  background-color: crimson;
  border-radius: 0px 0px 12px 12px;  
} 

#output {
  border-radius: 12px;
   width: 95%;
  height: 50px;
  background-color: lightblue;
   font-size: 1.6rem;
}


input[type="button"] {
	width: 48px;
  height: 44px;
  font-weight: 400;
  background-color: black;
  border-radius: 20%;
  text-align: center;
  color: white;
  font-size: 1.4rem;
  
}
#clear {
	width: 100%;
}

body{
background-color: midnightblue;
}

h1{
color: white;
}