<!DOCTYPE html>
<html lang="en-US">
<head>
    <title>img_alt_background - Accessibility Checker Help</title>
    <script>
        RULE_MESSAGES = {"en-US":{"Pass_0":"Rule Passed","Manual_1":"Verify important background image information has a text alternative in system high contrast mode","group":"Background images that convey important information must have a text alternative that describes the image"}};
        RULE_ID = "img_alt_background"
    </script>

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