Review fixed pixel values in fonts, widths, and spacing, then suggest relative units that adapt to available space and browser font preferences. Check rendered layouts at different screen widths and during interactions before proposing changes.
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Use when reviewing stylesheets, component styles, and responsive behavior related to Use relative units for responsive layouts. Check the rendered layout across breakpoints and interaction states before proposing a fix.
安装前可以查看交给 AI 代理的指令内容。
Fixed pixel values override user browser preferences, making your site inaccessible to users who increase their default font size (a common accommodation for low vision). Relative units also reduce the number of breakpoints needed — elements naturally adapt to available space rather than requiring explicit overrides at every viewport width.
Find all px-based font-size, width, and padding values in this CSS file that should use relative units instead.
Convert fixed px font sizes to rem equivalents and replace fixed widths with percentage or relative alternatives.
Explain the difference between rem, em, %, vw, and vh, and when to use each one.
Review stylesheets, component styles, and responsive states related to Use relative units for responsive layouts. Flag exact selectors, declarations, or breakpoints that violate the rule in the rendered UI.
For full implementation details, code examples, and framework-specific guidance,
see references/rule.md.
Rule page: https://frontendchecklist.io/rules/css/responsive-units
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Create and review custom 404 pages that help visitors recover from broken or moved links through search and navigation. Check the rendered page and HTTP response so missing content returns a proper 404 status.
中文简介正在准备中。当前显示英语简介。
Audit or create a dedicated About page that explains a website’s purpose and identifies its people or organization. Review the rendered output and supporting information, including expertise and contact details, to find gaps.
中文简介正在准备中。当前显示英语简介。
Review and add automated accessibility checks for components, pages, and continuous integration workflows. Use axe-based tools to detect structural and attribute issues, while identifying checks that still need keyboard or screen reader testing.
中文简介正在准备中。当前显示英语简介。
Review sign-in, registration, multi-factor authentication, and account recovery for accessibility barriers. Find blocked paste, difficult code entry, and inaccessible backup methods, then suggest authentication paths that support password managers, autofill, or device approval.
中文简介正在准备中。当前显示英语简介。
Review form errors, success messages, and live updates so screen reader users receive important notifications. Check the HTML delivered to the browser, announcement settings, display duration, and dismissal controls, then identify specific elements that need changes.
中文简介正在准备中。当前显示英语简介。
Review HTML tables so screen reader users can understand how headers and data relate. Check header markup, table descriptions, and merged cells, then identify specific fixes and ways to verify them.
中文简介正在准备中。当前显示英语简介。