<div class="container">
  <ul>
    <li class="elm1">Element1</li>
    <li class="elm2">Element2</li>
    <li class="elm3">Element3</li>
  </ul>
</div>
<button id="button">Get Element</button>
<p id="msg">Click button</p>
button{
  padding:10px 20px;
  background:#333;
  color:#fff;
  border-radius:6px;
  border:none;
}
document.getElementById("button").onclick = function() {
  const elm = document.querySelector(".elm2").textContent;
const msg = document.getElementById("msg");
  msg.innerHTML = "You've got " + elm + "." ;
};

External CSS

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External JavaScript

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