Warn about accessibility issues in html documents and apps.
An R wrapper for a11y.css

You can install the released version of alix from GitHub.

# install.packages("remotes")
remotes::install_github("gadenbuie/alix")

To use, simply add alix::a11y_css() to your Shiny app's UI or in a chunk in an HTML R Markdown document.

```{r test-accessibility, echo=FALSE}
alix::a11y_css()
```

There are a number of supported languages, and you can choose the level of accessibility tests and warnings, listed here from most to least tests:

• all: every messages (called advice by a11y.css)
• warning: warnings and errors;
• obsolete: obsolete stuff, warnings and errors;
• error: only errors.

For more information, check out

• the a11y.css GitHub page

• the a11y.css wiki