How to make alerts in the red validator?

Question

SharePoint

Good afternoon. There are two forms in SharePoint "form#1" and "form#2".
In the first form, when checking values, the messages from the validator are red.

In the source code editor, they look like this:

<span class="ms-formvalidation"><span role="alert">Необходимо задать значение для этого обязательного поля.</span><br></span><span role="alert" class="ms-formvalidation">Необходимо задать значение для этого обязательного поля.</span>

In the second form, when checking values, the messages from the validator are black.

In the source code editor, they look like this:

<span id="ctl00_ctl30_g_31c3954f_f533_46ab_be42_65b5d521e2f3_ff31_ctl00_ctl00_DateTimeField_ctl00" style="display: inline;">Необходимо задать значение для этого обязательного поля.</span>

How to make alerts red??? Google didn't help

Answer 1

The MSDN forum suggested the following solution:

<style type="text/css">
#ctl00_ctl30_g_31c3954f_f533_46ab_be42_65b5d521e2f3_ff31_ctl00_ctl00_DateTimeField_ctl00{
  color:#FF0000;
}
</style>