Registrar Corp

Good day all, I tried To remove Suggested Articles via CSS but its still showing on my request form after a user clicks off the subject. Any help would appreciated. FYI, I dont have anything custom like jquery etc. 

I have this exact code in my style.css 

.form .suggestion-list {
 display:none;
}

.form .suggestion-list label {
 display:none;
}

.form .suggestion-list li {
 display:none;
}

.form .suggestion-list li a:visited {
 display:none;
}