<!-- Learn about this code on MDN: https://developer.mozilla.org/en-US/docs/Web/CSS/:matches -->
<div class="app">
<header>
  <p>This is my header paragraph</p>
</header>

<main>
  <ul>
    <li><p>This is my first</p><p>list item</p></li>
    <li><p>This is my second</p><p>list item</p></li>
  </ul>
</main>

<footer>
  <p>This is my footer paragraph</p>
</footer>
</div>

body {
  width: 100vw;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 2vw;
  background: #eaeaea;
}

.app {
  background: white;
  border-radius: 8px;
  padding: 20px;
  min-width: 30vw;
  position: relative;
  
  &::after {
    content: ':matches() Cross Browser';
    position: absolute;
    padding: 10px;
    background: linear-gradient(to right, #f36, #f63);
    color: #fff;
    border-radius: 5px;
    top: -25px;
    left: 20px;
  }
}

:matches(header, main, footer) p:hover {
  color: red;
  cursor: pointer;
}

:-webkit-any(header, main, footer) p:hover {
  color: red;
  cursor: pointer;
}

:-moz-any(header, main, footer) p:hover {
  color: red;
  cursor: pointer;
}

let matchedItems;

try {
  matchedItems = document.querySelectorAll(':matches(header, main, footer) p');
} catch(e) {
  try {
    matchedItems = document.querySelectorAll(':-webkit-any(header, main, footer) p');
  } catch(e) {
    try {
      matchedItems = document.querySelectorAll(':-moz-any(header, main, footer) p');
    } catch(e) {
      console.log('Your browser doesn\'t support :matches() or :any()');
    }
  }
}

for(let i = 0; i < matchedItems.length; i++) {
  applyHandler(matchedItems[i]);
}

function applyHandler(elem) {
  elem.addEventListener('click', function(e) {
    alert('This paragraph is inside a ' + e.target.parentNode.nodeName);
  });
}