Element: clientTop property - Web APIs

Element: clientTop property - Web APIs | MDN

In the following example, the client area has a white background and a 24px black border-top. The clientTop value is the distance from where the margin (yellow) area ends and the padding and content areas (white) begin: that is, 24px.

HTML

html

<div id="container">
  <div id="contained">
    <p>
      Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
      tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim
      veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea
      commodo consequat.
    </p>
  </div>
</div>

CSS

css

#container {
  margin: 3rem;
  background-color: rgb(255 255 204);
  border: 4px dashed black;
}

#contained {
  margin: 1rem;
  border-top: 24px black solid;
  padding: 0px 28px;
  overflow: auto;
  background-color: white;
}