Google Chrome does not support the background image when selected, so the rule in the stylesheet breaks.
To fix this, you will need to specify the background color and background image separately so that browsers that do not support the background image will not ignore the entire rule, but at least take the rules that they support:
.ui-state-error, .ui-widget-content .ui-state-error, .ui-widget-header .ui-state-error {
background-color: #E69700;
background-image: url(images/ui-bg_diagonals-thick_20_e69700_40x40.png) 50% 50% repeat;
}
style, , :
<select class='ui-state-error' style='background-color: #E69700;'>