<!DOCTYPE html><html><head><title>CSS box-shadow Test</title><linkrel="author"title="tmd"href="mailto:weisong4413@126.com"><styletype="text/css">.greenSquare-shadow{position:absolute;top:50px;left:50px;width:100px;height:100px;Border-bottom-right-radius:50px50px;Border-top-left-radius:50px50px;background-color:rgba(0,255,0,1);/*box-shadow: 110px 110px 0px 10px #000000;*/}.black-shadow{position:absolute;top:150px;left:150px;width:120px;height:120px;Border-bottom-right-radius:60px60px;Border-top-left-radius:60px60px;background-color:black;}.container{position:absolute;}/* This div should only be visible if the test fails */.redSquare{position:absolute;top:150px;left:150px;width:120px;height:120px;Border-bottom-right-radius:60px60px;Border-top-left-radius:60px60px;background-color:red;}</style></head><body><p>The test passes if you the green square's black shadow and it completely covers the red square.</p><divclass="container"><!-- This is the square that should not be visible if the test passes --><divid="red"class="redSquare"></div><!-- This is the square being tested with the shadow --><divid="green"class="greenSquare-shadow"></div><divid="black"class="black-shadow"></div></div><inputtype="button"value="Border radius?"onclick="fun_radius()"><script>varhave_radius=true;varblack=document.getElementById("black");varred=document.getElementById("red");vargreen=document.getElementById("green");functionfun_radius(){if(have_radius){red.style.borderBottomRightRadius="0px";red.style.borderTopLeftRadius="0px";black.style.borderBottomRightRadius="0px";black.style.borderTopLeftRadius="0px";green.style.borderBottomRightRadius="0px";green.style.borderTopLeftRadius="0px";have_radius=false;}else{red.style.borderBottomRightRadius="60px";red.style.borderTopLeftRadius="60px";black.style.borderBottomRightRadius="60px";black.style.borderTopLeftRadius="60px";green.style.borderBottomRightRadius="50px";green.style.borderTopLeftRadius="50px";have_radius=true;}}</script></body></html>