contact form –> after mail has been sent, the info-text is not displayed ;-/

Good Evening Folks,

new little question: I wanna change the background-colour of the
conformation message. Please take a look at my screenshot.
There you can see that the background-colour is grey with a white
frame. The css-snippet from your documentaion unfortunately
does not work. ;-) If I use it, the conformation message does not
appear.

Following snippets are already in my quick-css-field:
———————————————————————————
/*—————————————-
// CSS – Contact form Lable
//————————————–*/

.avia_ajax_form label {
font-size: 17px;
line-height: 1em;
color:#990000;
}

/* Required field (Styling the asterisk ) */
.avia_ajax_form label .required {
font-size: 17px;
line-height: 1em;
color:#990000;
}

.avia_ajax_form .button {
min-width: 100%;
background-color: #99cccc !important;
border: none;
}

.avia_ajax_form .button:hover {
min-width: 100%;
background-color: #990000 !important;
border: none;
}

#top .main_color input[type=”text”] , #top .main_color select
{
background-color: #bbe6e6;
color: #990000;
border: none;
}

#top .main_color textarea{
background-color: #bbe6e6;
color: #990000;
border: none;
}

#top #wrap_all .error .text_input, #top #wrap_all .error .text_area, #top #wrap_all .error .select {
border: 3px solid #99cccc;
background-color: #990000;
color: #ffffff;
}
———————————————————————————

So, which new snippet I need additionally? Thanks for your new help!

Best regards
Carsten