body 
{
 background-color:#000000;
 color:#FF0000;
 text-align:center;
 margin-left:auto;
 margin-right:auto;
 font-size:x-large;
 }
 
 h3
 {
  color:Silver;
 }
 
  #previous
 {
  float:left;
  padding:40px 20px 20px 20px;
  font-size:x-large;
 }
 
 #next
 {
  float:right;
  padding:40px 20px 20px 20px;
  font-size:x-large;
 }
 
 #back
 {
  font-size:large;
  text-align:center;
 }
 
 img
 {
  padding:20px 20px 20px 20px;
  border:none;
 }
 
 #click
 {
  text-align:center;
  padding:75px 200px 10px 200px;
  margin-left:100px;
  font-size:large;
 }