body {
  background-color: white;
  color: black;
  font-family: Verdana;
}

h1 {
  color: black;
  font-weight: bold;
  }
  
sup {
  color: rgb(158, 66, 88);
  font-weight: bold;
  }

#menu li{
  list-style-type: none;
  padding: 5px;
  width: 100%;  
}
  
#menu a{
  color: white;
  background-color: black;
  padding: 5px;
  border-radius: 5px
  }
  
.container {
  display: grid;
  grid-template-columns: auto auto;
  font: 1.2em sans-serif;
  align-items: center;
  justify-content: center;
  
  }
  
.container div {
  background-color: #f1f1f1;
  border: 1px solid black;
  padding: 10px;
  font-size: 30px;
  text-align: center;
}

.center {
  margin: 0;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}  
  
.black-panther{
  width: 100px;
  height: 100px;
  }