Welcome to the world of Cobalt!

mitoste 1) The name of filds in submittion page is not aligned with the field.

Hello mitoste,
would you mind to tell us your joomla template/framework?
Most likely this is an issue of other CSS files overriding the Cobalt default styles.

2) the field category (Choose where to post) and fields "Who can repost" are not excluded from the submittion page.

Category selection can be set here:
Edit Type --> Submission Parameters tab --> Categories Behavior --> Who can select category
(hence the tooltip help text!)

Who can Repost can be found here:
Edit Section --> Personalization tab --> General --> Post anywhere NO/YES

Thanks. The problem 2 is solved.

My template joomla is Paradigm template 1.5 by RocketTheme http://www.rockettheme.com/joomla/templates/paradigm

mitoste My template joomla is Paradigm template 1.5 by RocketTheme http://www.rockettheme.com/joomla/templates/paradigm

Thanks. This is a GANTRY v4 based template.
Did you test with the free blank template? Does it have the same issue?

Update

I did a quick test with GANTRY 4 DEFAULT template. It works.
So it might be an issue with "PARADIGM" or other CSS addition!?

I'm installing gantry_joomla_framework-4.1.31 downloaded from RocketTheme.

the problem is not in standard template. I'm not installing css alternative.

http://www.centroolistico.org/community/operatori/submit/1-operatori-olistici/3-operatori-type?return=aHR0cDovL3d3dy5jZW50cm9vbGlzdGljby5vcmcvY29tbXVuaXR5L29wZXJhdG9yaS9pdGVtcy8xLW9wZXJhdG9yaS1vbGlzdGljaQ==

mitoste http://www.centroolistico.org/community/operatori/submit/1-operatori-olistici/3-operatori-type?return=aHR0cDovL3d3dy5jZW50cm9vbGlzdGljby5vcmcvY29tbXVuaXR5L29wZXJhdG9yaS9pdGVtcy8xLW9wZXJhdG9yaS1vbGlzdGljaQ==

Sorry, I can't see and access the form.
Do you have a test user account?

You might include the infos in a "private" comment, because I can't see login credentials in the initial topic.

username: nemesis.2884[@]gmail.com password: Pisaq123

Click here to link...

mitoste 1) The name of filds in submittion page is not aligned with the field.

There is a "compiled" css file, which seems to set all adminform labels to 100% width. It overrides the default bootstrap styles.

You might add the following rule to your custom css or file. Please, see GANTRY 4 docs for further instructions.

#adminForm label {
  width: 160px;
}

Hope this helps.