# Improving Accessibility source: https://developer.mastercard.com/mastercard-gateway/documentation/integrations-types/hosted-checkout/customizing-the-checkout/improving-accessibility/index.md The Hosted Payment Page can provide a user experience compliant with the Web Content Accessibility Guidelines (WCAG) 2.0 Level AA accessibility standard. Study the [WCAG 2.0](https://www.w3.org/WAI/standards-guidelines/wcag/) guidelines and ensure that your web site conforms to them. To ensure that your integration is accessible, set your checkout page language by adding the lang attribute to the *html* element of the page: ```html ```