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+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+
+ <head>
+
+ <title>CSS Test: position relative - top offset percentage and inherit</title>
+
+ <link rel="author" title="GĂ©rard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
+ <link rel="help" title="9.3.2 Box offsets: 'top', 'right', 'bottom', 'left'" href="http://www.w3.org/TR/CSS21/visuren.html#position-props" />
+ <link rel="help" title="6.2.1 The 'inherit' value" href="http://www.w3.org/TR/CSS21/cascade.html#value-def-inherit" />
+ <link rel="help" href="http://www.w3.org/TR/css-cascade-3/#inherit" />
+ <link rel="help" href="http://www.w3.org/TR/css-cascade-4/#inherit" />
+ <link rel="match" href="top-114-ref.xht" />
+
+ <meta content="'top: inherit' makes the top property take the same computed value as the top property for the element's parent; in the case of a percentage value, the computed value is the specified percentage value. 'top: [percentage]' refers to height of containing block." name="assert" />
+
+ <style type="text/css"><![CDATA[
+ div {position: relative;}
+
+ div#grand-parent-rel-pos
+ {
+ height: 400px;
+ width: 600px;
+ }
+
+ div#red-rel-pos-overlapped
+ {
+ background-color: red;
+ color: white;
+ height: 100px;
+ left: 300px;
+ top: 50px;
+ width: 100px;
+ }
+
+ div#parent-rel-pos
+ {
+ height: 0px;
+ left: 50%; /* 50% x 600px == 300px */
+ /* 'left: [percentage]' refers to width of containing block. */
+ top: -12.5%; /* -12.5% x 400px == -50px */
+ /* 'top: [percentage]' refers to height of containing block. */
+ width: 100px;
+ }
+
+ div#green-child-rel-pos-inherit-overlapping
+ {
+ background-color: green;
+ height: 100px;
+ left: 0px;
+ top: inherit;
+ /*
+ =====================================
+ top: inherit should resolve as top: -12.5% because
+ "the property takes the same computed value as the
+ property for the element's parent"
+ CSS 2.1, section 6.2.1 The 'inherit' value
+ http://www.w3.org/TR/CSS21/cascade.html#value-def-inherit
+ and
+ "Computed value: (...) if specified as a percentage, [then]
+ the specified [percentage] value"
+ http://www.w3.org/TR/CSS21/visuren.html#position-props
+
+ So, the top offset of #green-child-rel-pos-inherit-overlapping
+ should be -12.5%, which is -12.5% of the height of its containing
+ block (#parent-rel-pos) which is 0px.
+ =====================================
+ */
+ width: 100px;
+ }
+ ]]></style>
+
+ </head>
+
+ <body>
+
+ <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+
+ <div id="grand-parent-rel-pos">
+ <div id="red-rel-pos-overlapped">test FAILED</div>
+ <div id="parent-rel-pos">
+ <div id="green-child-rel-pos-inherit-overlapping"></div>
+ </div>
+ </div>
+
+ </body>
+</html> \ No newline at end of file