body {
  background: #e6eff6;
}

.container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-areas:
    "join join"
    "price info";
  width: 600px;
  margin: 0 auto;
  border-radius: 5px;
  margin-top: 120px;
  box-shadow: 0 4px 8px 1px rgba(0, 0, 0, 0.2);
}

.container > div {
  padding: 30px;
}

h1 {
  font-size: 1.375em;
  color: #2bb3b1;
}

h2 {
  color: #bfdf32;
  margin: 10px 0;
}

h3 {
  font-size: 0.875em;
  color: hsl(204, 43%, 93%);
  margin-bottom: 15px;
}

h4 {
  font-size: 2.25em;
}

.flex {
  display: flex;
  align-items: center;
}

p span {
  margin-left: 15px;
  opacity: 50%;
}

a {
  background: hsl(71, 73%, 54%);
  color: #fff;
  text-align: center;
  padding: 20px 0;
  border-radius: 5px;
  box-shadow: 0 4px 8px 1px rgba(0, 0, 0, 0.2);
}

.join {
  grid-area: join;
  background: #fff;
  border-radius: 5px 5px 0 0;
}

.join p {
  font-size: 0.875em;
  font-weight: bold;
  color: #d5d8de;
  max-width: 500px;
  line-height: 1.4;
}

.price {
  grid-area: price;
  background: #2bb3b1;
  color: #fff;
  border-radius: 0 0 0 5px;
}

.price > p {
  margin: 10px 0 30px 0;
}

.info {
  grid-area: info;
  background: #4abebd;
  border-radius: 0 0 5px 0;
}

.info ul li {
  font-size: 0.875em;
  line-height: 1.5;
  opacity: 50%;
  color: #fff;
}

@media (max-width: 700px) {
  .container {
    width: calc(100% - 40px);
    grid-template-areas:
      "join"
      "price"
      "info";
    grid-template-columns: 1fr;
    margin: 40px auto;
  }
  .price {
    border-radius: 0;
  }
  .info {
    border-radius: 0 0 5px 5px;
  }
}