<div class="container">
  <div class="example">
    <p class="shadow shadow-1">I'm a shadow</p>
    <pre>text-shadow: 0px 10px 10px #234D3C;</pre>
  </div>

  <div class="example">
    <p class="shadow shadow-2">I'm a shadow</p>
    <pre>text-shadow: 3px 3px 0px #F2A063;</pre>
  </div>
</div>

* {
  box-sizing: border-box;
}

body {
  background-color: #FFD913;
  font-family: sans-serif;
}

.container {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  margin-left: auto;
  margin-right: auto;
  margin-top: 40vh;
  margin-top: calc(50vh - 130px);
}

.example {
  background-color: white;
  flex-grow: 1;
  margin: 0.5em;
  min-width: 150px;
  border-radius: 10px;
}

.example .shadow {
  display: block;
  width: 90%;
  height: 100px;
  background-color: white;
  margin: 20% auto 10% auto;
  border-radius: 2px;
  font-size: 3rem;
  text-align: center;
  font-weight: 800;
}

.example pre {
  width: 90%;
  background-color: #E4FFF7;
  padding: 1em;
  border-radius: 2px;
  margin-left: auto;
  margin-right: auto;
  white-space: pre-wrap;
}

.shadow-1 {
  text-shadow: 0px 10px 10px #234D3C;
}

.shadow-2 {
  text-shadow: 3px 1px 0px #F2A063;
}

@media screen and (max-width: 640px) {
  .container {
    flex-wrap: wrap;
    margin-top: 2vh;
  }
}