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<html><head><style>#div1 { position: relative; margin: auto; height: 150px; width: 250px; padding: 10px; border: 1px solid black; perspective: 125px;}#div2 { padding: 50px; position: absolute; border: 1px solid black; background-color: coral; transform: rotateX(45deg);}</style></head><body><p>Click the "Try it" button to change the perspecive-origin property of the DIV1 element:</p><button onclick="myFunction()">Try it</button><div id="div1">DIV1 <div id="div2">Think that you are a bird, looking down on a wall. Then click the button to see what happens if the wall moves to the left!</div></div><script>function myFunction() { document.getElementById("div1").style.perspectiveOrigin = "10px 50%";}</script></body></html>