### Visual
Visually-impaired users may have low vision or be completely blind. For low vision users, proper typographic contrast is important, both size and color. Foreground colors should stand out from background colors. You can use tools to calculate the contrast ratio of your foreground and background colors. The contrast ratio should at least be 1:4.5 for normal text and 3:1 for large text.
-Blind users consume the web by reading it using a [screen reader](httsp://en.wikipedia.org/wiki/Screen_reader). Screen readers read the content of a web page out loud, or write it out as Braille, using certain queues from the HTML to infer meaning.
+Blind users consume the web by reading it using a [screen reader](https://en.wikipedia.org/wiki/Screen_reader). Screen readers read the content of a web page out loud, or write it out as Braille, using certain queues from the HTML to infer meaning.
### Motor