body{ font: 14px sans-serif;
 background-color: lightblue;  }

h1, h2, p {
  text-align: center;
  color: black;
}


a { padding: .2em; }
a:focus   { background-color: red; color: black;}
a:hover   { background-color: blue; color: white; }
a:active  { background-color: yellow; color: black; }

 .wrapper{ 
 width: 360px; 
 padding: 20px; }
  
#para1 {
  text-align: center;
  color: red;
}

.center {
  text-align: center;
  color: red;
}


th {
        background-color: #666; 
        color: #fff;
      }

tr {
    background-color: #fffbf0;
    color: #000;
    }

tr:nth-child(odd) {
	background-color: #e4ebf2 ;
     }