mask-position-1-ref.html

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<!DOCTYPE html>

<html>

  <head>

    <meta charset="utf-8">

    <title>CSS Masking: mask-position: position mask layer image</title>

    <link rel="author" title="Astley Chen" href="mailto:aschen@mozilla.com">

    <link rel="author" title="Mozilla" href="https://www.mozilla.org">

    <style type="text/css">

      div.outer {

        position: relative;

        width: 100px;

        height: 100px;

        border: 1px solid black;

      div.inner {

        position: absolute;

        width: 50px;

        height: 50px;

        background-color: purple;

      #inner1 { right: 10px; bottom: 35px; }

      #inner2 { right: 30px; bottom: 25px; }

    </style>

  </head>

  <body>

    <div class="outer"><div class="inner" id="inner1"></div></div>

    <div class="outer"><div class="inner" id="inner1"></div></div>

    <div class="outer"><div class="inner" id="inner2"></div></div>

    <div class="outer"><div class="inner" id="inner2"></div></div>

  </body>

</html>