Selectors

<div>
  <h2>Ram</h2>
  <p>ram@abc.com</p>
</div>
<div>
  <h2>Shyam</h2>
  <p>shyam@abc.com</p>
</div>
<div>
  <h2>Ramesh</h2>
  <p>ramesh@abc.com</p>
</div>

<div>
  <h2 id="team-lead">Ram</h2>
  <p class="email">ram@abc.com</p>
</div>
<div>
  <h2 class="team-member">Shyam</h2>
  <p class="email">shyam@abc.com</p>
</div>
<div>
  <h2 class="team-member">Ramesh</h2>
  <p class="email">ramesh@abc.com</p>
</div>

#team-lead {
  font-size: 30px;
  color: blue;
}
.team-member {
  font-size: 20px;
  color: green;
}
.email {
  font-size: 10px;
}