Css类通过php添加但没有样式

Question

I am trying to validate forms through php and whenever an error occurs I want the input field to be bordered by red color. The class is getting added but styles arent showing. The style is getting cancelled. Any advice to tackle this??

Below is a screrenshot

Answer 1

Try this:

.error_field
{
    color:red !important;   // Now this will override the default css and apply yours
}