body{
	background: black;
	color: lightgreen;
	}
h1{
	font-size: 60px;
	color: yellow;
	letter-spacing: 20px;
  }
 h2{
	 font-size: 40px;
	 text-align: center;
	}
img{
	border: dotted 10px gray;
	margin: 10px;
	padding: 20px;
	opacity: 0.7
   }
li{
    font-size: 30px;
  }
img:hover{
	opacity: 1;
}