<!DOCTYPE html>
<html>
<head>
<style>
span {
    color: blue;
    border:1px solid black;
}

</style>
</head>
<body>

<div>Here is <span>a span element</span> inside an element with no color property set.

  <div style="color:green">
  Here is <span id="mySpan">a span element</span> inside an element with color:green.
  </div>

  <div style="color:red">
  Here is <span>a span element</span> inside an element with color:red.
  </div>
  
</div>

<p>Click the "Try it" button to set the value of the color property to "inherit" for the second SPAN element:</p>

<button onclick="myFunction()">Try it</button>

<script>
function myFunction() {
    document.getElementById("mySpan").style.color = "inherit";
}
</script>

</body>
</html>