What is the meaning of \9 in this width property value declaration? [duplicate]
\9 is a “CSS hack” specific to Internet Explorer 7, 8, & 9. This simply means that the one specific line of CSS ending with a \9; in place of the ; is only valid in IE 7, 8, & 9. In your example, width: 500px\9; means that a width of 500 pixels (same result … Read more