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Adding PX comment to G18 and G145. #189

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Jun 14, 2016
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Adding PX comment to G18 and G145. #189

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c8aa1d4
Adding PX comment to G18 and G145.
alastc May 25, 2016
2835141
Replaced bibref with loc.
alastc May 25, 2016
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3 changes: 3 additions & 0 deletions wcag20/sources/techniques/general/G145.xml
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Expand Up @@ -14,6 +14,9 @@
<p>The objective of this technique is to make sure that users can read text <p>The objective of this technique is to make sure that users can read text
that is presented over a background. This technique relaxes the 4.5:1 that is presented over a background. This technique relaxes the 4.5:1
contrast ratio requirement for text that is at least 18 point (if not bold) or at least 14 point (if bold).</p> contrast ratio requirement for text that is at least 18 point (if not bold) or at least 14 point (if bold).</p>
<note>
<p>The point size should be obtained from the user agent, or calculated based on font metrics as the user agent does when evaluating this success criterion. Point sizes are based on the CSS pt size <loc ref="https://www.w3.org/TR/css3-values/#absolute-lengths">CSS3 Values</loc>. The ratio between sizes in points and CSS pixels is 1pt = 1.333px, therefore 14pt and 18pt are equivalent to approximately 18.5px and 24px.</p>
</note>
<p>If the background is a solid color (or all black or all white) then the <p>If the background is a solid color (or all black or all white) then the
contrast ratio of the larger-scale text can be maintained by making sure that each contrast ratio of the larger-scale text can be maintained by making sure that each
of the text letters have a 3:1 contrast ratio with the background.</p> of the text letters have a 3:1 contrast ratio with the background.</p>
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3 changes: 3 additions & 0 deletions wcag20/sources/techniques/general/G18.xml
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Expand Up @@ -14,6 +14,9 @@
<description> <description>
<p>The objective of this technique is to make sure that users can read text <p>The objective of this technique is to make sure that users can read text
that is presented over a background. For Success Criterion 1.4.3, this technique describes the minimum contrast ratio for text that is less than 18 point (if not bold) and less than 14 point (if bold). For Success Criterion 1.4.5, this technique relaxes the 7:1 contrast ratio requirement for text that is at least 18 point (if not bold) or at least 14 point (if bold).</p> that is presented over a background. For Success Criterion 1.4.3, this technique describes the minimum contrast ratio for text that is less than 18 point (if not bold) and less than 14 point (if bold). For Success Criterion 1.4.5, this technique relaxes the 7:1 contrast ratio requirement for text that is at least 18 point (if not bold) or at least 14 point (if bold).</p>
<note>
<p>The point size should be obtained from the user agent, or calculated based on font metrics as the user agent does when evaluating this success criterion. Point sizes are based on the CSS pt size <loc ref="https://www.w3.org/TR/css3-values/#absolute-lengths">CSS3 Values</loc>. The ratio between sizes in points and CSS pixels is 1pt = 1.333px, therefore 14pt and 18pt are equivalent to approximately 18.5px and 24px.</p>
</note>
<p>If the background is a solid color (or all black or all white) then the <p>If the background is a solid color (or all black or all white) then the
relative luminance of the text can be maintained by making sure that each relative luminance of the text can be maintained by making sure that each
of the text letters have 4.5:1 contrast ratio with the background.</p> of the text letters have 4.5:1 contrast ratio with the background.</p>
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