Property for borders of selected input box?

mockdot

Customer
Hi there, been trying to find the color that the borders change when you have selected the input box. Can't seem to find this. I've got to:

<textarea rows="1" name="title" data-xf-init="textarea-handler tooltip" data-single-line="true" class="input js-titleInput " autocomplete="off" maxlength="150" placeholder="Título del tema" data-original-title="Publicar un nuevo tema en este foro" aria-label="Publicar un nuevo tema en este foro" id="js-XFUniqueId3" style="overflow-x: hidden; overflow-wrap: break-word; height: 50px;"></textarea>

If this property is not easily editable, what would be the property with the active attribute to edit the color of the borders upon selection?

See: https://gamers.cr/foros/tirador-en-primera-persona-fps.2/
 

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