<div>
  <p>Charmander</p>
  <p>Bulbasaur</p>
  <p>Squirtle</p>
  <p>Pikachu</p>
  <p>Pidgey</p>
  <p>Ratata</p>
</div>
p {
  font-size: 16px;
  color: #7f8c8d;
  background-color: #95a5a6;
  text-align: center;
}

p:nth-child(2n+1) {
  font-size: 20px;
  color: #FFFFFF;
  background-color: #2ecc71;
}

External CSS

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External JavaScript

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