body{
  margin: 0;
  padding: 10px;
  background-color: rgb(51,51,51);
  color: rgb(200,200,200);
  font-family: Arial, sans-serif;
  font-size: 2em;
}

p{
  width: 100%;
  margin:0;
}
p:nth-child(odd) {
  background-color: rgb(20,20,20);
}
a{
  display: block;
  color: rgb(200,200,200);
  width: 100%;
  transition: background-color 1s;
  padding:10px;
}

a:hover{
  background-color: rgb(80,80,80);
}