<div id="card">
  <div id="top-section">
    <h2>Join our community</h2>
    <h4>30-day, hassle-free money back guarantee</h4>
    <p>Gain access to our full library of tutorials along with expert code reviews.  Perfect for any developers who are serious about honing their skills.</p>
  </div>
  <div id="bottom-section">
    <div id="bottom-left-section">
      <h4>Monthly Subscription</h4>
      <div id="price-container">
        <div id="price">$29</div>
        <div id="price-frequency">per month</div>
      </div>
      <p>Full access for less than $1 a day</p>
      <button onclick="alertUser()">Sign Up</button>
    </div><div id="bottom-right-section">
      <h4>Why Us</h4>
      <ul>
        <li>Tutorials by industry experts</li>
        <li>Peer & expert code review</li>
        <li>Coding exercises</li>
        <li>Access to our GitHub repos</li>
        <li>Community forum</li>
        <li>Flashcard decks</li>
        <li>New videos every week</li>
      </ul>
    </div>
  </div>
</div>

html {
  box-sizing: border-box;
  font-family: 'Karla';
  font-size: 16px;
  font-weight: 400;
}

body {
  padding: 20px;
}

h2, h4, p {
  margin: 0;
}

*, *:before, *:after {
  box-sizing: inherit;
}

#card {
  box-shadow: 2px 3px 7px 0px rgba(0,0,0,0.35);
  border-radius: 5px;
  overflow: hidden;
  width: 600px;
  height: 400px;
}

#top-section {
  width: 100%;
  height: 45%;
  padding: 25px;
}

#bottom-section {
  width: 100%;
  height: 55%;
  color: white;
}

#bottom-left-section {
  display: inline-block;
  width: 50%;
  height: 100%;
  vertical-align: top;
  background-color: #2ab2af;
  padding: 25px;
}

#bottom-right-section {
  display: inline-block;
  width: 50%;
  height: 100%;
  background-color: #2EBFBD;
  vertical-align: top;
  padding: 25px;
}

#top-section h2 {
  color: #2ab2af;
  margin-bottom: 20px;
}

#top-section h4 {
  color: #c0df34;
  margin-bottom: 10px;
}

#top-section p {
  color: #98a6bd;
}

button {
  color: white;
  background-color: #c0df34;
  border: none;
  padding: 10px;
  width: 100%;
  border-radius: 5px;
}

button:hover {
  cursor: pointer;
  background-color: #A9C42D;
  transform: scale(1.02);
}

#price {
  font-weight: 700;
  font-size: 1.4rem;
}

#bottom-left-section h4 {
  margin-bottom: 25px;
}

#bottom-left-section p {
  font-size: 0.8rem;
  margin-bottom: 40px;
}

#price-frequency, #price {
  display: inline-block;
}

#price-frequency {
  position: relative;
  top: -3px;
  font-size: 0.8rem;
  opacity: 0.7;
  margin-left: 5px;
}

#price-container {
  margin-bottom: 10px;
}

ul {
  padding: 0;
  list-style: none;
  font-size: 0.8rem;
  opacity: 0.8;
}

function alertUser() {
  alert('Hey, you clicked the button!');
}