CSS Background for various input elements is not reset in admin and default themes.

[hakre]

The theme in the admin area mainly has white backgrounds. Those backgrounds are set. This is done by a pattern called CSS-Reset that ensures that not the browsers background color (often provided by the OS) is chosen but the designers colors.

Many input elements have been forgotten to CSS-Reset the background color as well (even though they are heavily styled). This makes using the admin problemtic in those cases the underlying OS provides a dark background color for input elements.

[hakre]

The standard frontend theme has the same problem (both Default and Classic).

[hakre]

to properly test, do not forget to use the according constant in wp-config.php:

// use .dev.css stylesheets instead of the packed ones.
define('STYLE_DEBUG', true);

[hakre]

I tested this a bit. Works perfeclty with Opera 9.5 (only if styling of input elements is enabled naturally) so I assume the CSS is valid. Firefox generally has problems styling form elements, especially checkboxes. Chrome (Webkit) does not display any checkboxes. Chrome needed to have the background-color explicitly set otherwise it won't display any checkboxes any longer. Internet Explorer 6 (and I assume above as well) is unable to display the checkboxes background color properly as well.

So one update of the patch regarding the explicit set of the color.

[hakre]

Admin css missing background default value

[azaozz]

(In [12234]) Specify background color for input elements, props hakre, fixes #10881

[hakre]

Related: #8730

[hakre]

Reference: #11645