style.css

html,
body,
div,
h1,
h2,
img,
ul,
li {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
}

/* HTML5 display-role reset for outdated browsers */
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
  display: block;
}

ul {
  list-style: none;
}

html {
  box-sizing: border-box;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

body {
  background-color: #60a9ff;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  line-height: 1;
}

.panel {
  background-color: white;
  border-radius: 10px;
  padding: 15px 25px;
  width: 100%;
  max-width: 960px;
  display: flex;
  flex-direction: column;
  text-align: center;
  text-transform: uppercase;
}

.pricing-plan {
  border-bottom: 1px solid #e1f1ff;
}
.pricing-plan:last-child {
  border-bottom: none;
}

.pricing-img {
  margin-bottom: 25px;
  width: 100%;
  height: 375px;
}

.pricing-header {
  color: #888;
  font-weight: 600;
  letter-spacing: 1px;
}

.pricing-features {
  margin: 50px 0 25px;
  color: #016ff9;
  text-align: center;
}

.pricing-features-item {
  font-weight: 600;
  letter-spacing: 1px;
  font-size: 0.8rem;
  line-height: 1.5;
  padding: 15px 0;
  border-top: 1px solid #e1f1ff;
}

.pricing-features-item:last-child {
  border-bottom: 1px solid #e1f1ff;
}

.pricing-price {
  color: #016ff9;
  display: block;
  font-size: 2rem;
  font-weight: 700;
}

.pricing-button {
  border: 1px solid #9dd1ff;
  border-radius: 10px;
  color: #348efe;
  display: inline-block;
  padding: 15px 35px;
  text-decoration: none;
  margin: 25px 0;
  transition: background-color 200ms ease-in-out;
}

.pricing-button:hover,
.pricing-button:focus {
  background-color: #e1f1ff;
}

.pricing-button.is-featured {
  background-color: #48aaff;
  color: white;
}

.pricing-button.is-featured:hover,
.pricing-button.is-featured:focus {
  background-color: #269aff;
  color: white;
}

@media (min-width: 900px) {
  .panel {
    flex-direction: row;
  }
  .pricing-plan {
    border-bottom: none;
    border-right: 1px solid #e1f1ff;
    padding: 25px 50px;
  }
  .pricing-plan:last-child {
    border-right: none;
  }
  .pricing-features {
    text-align: left;
  }
  .pricing-img {
    height: 200px;
  }
}