G141: Heading markup is not provided

HTML Snippet Code
Scenario 1: Order of headings is not semantically correct using html markup
View Example <div class="wcag-fail"> <div style="font-size: 18px"> Deque products</div> <div style="font-size: 22px">1. Worldspace Attest</div> <p><span>Catch 50% of accessibility issues while your site is being developed.</span></p> <p><span>Framework integrations and browser plugins to help you incorporate accessibility into your existing development and testing environment.</span></p> <div style="font-size: 28px">Key Features</div> <ul> <li><span>Includes solutions for Unit Testing, Test Automation, and In-Browser testing</span></li> <li><span>Integrates with Selenium, QUnit, and other popular testing frameworks</span></li> </ul> <div style="font-size: 13px">Target Users</div> <ul> <li><span>Front-End Developers</span></li> <li><span>Test Engineers</span></li> </ul> <a href="http://www.deque.com/products/worldspace-attest/">Learn More About WorldSpace Attest</a> <div style="font-size: 14px">2. Worldspace Assure</div> <span>Optimize your accessibility testing, tracking, and reporting.</span> <p><span>Step-by-step guidance and report-building to empower your QA team without requiring them all to become accessibility experts.</span></p> <div style="font-size: 22px">Key Features</div> <ul> <li><span>Step-by-step guidance to ensure consistent processes and results</span></li> <li><span>Run manual and automated testing in the same interface.</span></li> </ul> <h3>Target Users</h3> <ul> <li><span>Accessibility Specialists</span></li> </ul> <a href="http://www.deque.com/products/worldspace-assure/">Learn More About WorldSpace Assure</a>