How to have full width fields

Γεια σου Γιάννη,

Have you tried to add width 100% to your field like this?

div.region-myregion div.myfield {
  width: 100%;
}

Note that if its an inline element like <a>, <span>, <input> etc you need to make it display like a block. Else the width:100% won't work. Try:

div.region-myregion div.myfield a {
  display: block;
  width: 100%;
}

The Fences module can help you control how your fields are rendered.

Can you be more specific and give an example of what you are trying to achieve?

Γεια σου Γιάννη <- what does this mean.

you want a field to be as wide as the viewport and the region only to be as it is? normally i fields maximum width can be the regions width. otherwise you need to do some tricks with position.

Well i don't think that adding big negative margin is the best solution. You are adding horizontal scrollbar that breaks your layout when the comment div is rendered. See my screenshot. Also "blackhatseo people" trend to use negative margins to hide keywords. You must avoid making your child element wider than its parent.

Here is a better solution:

You must render the comments outside the content zone. This is pretty easy and i did it in few minutes. Here is how:

1) Download and install the Commentsblock module. (this will render the comments in a block)
2) Visit the module configuration page and select NO in the Display comment form only? selectbox.
3) Add a new zone to your theme. Right after the content zone. Configure it to have one full width region.
4) Add the commentsblock block to your comment zone region.
5) Style it

Here is a screenshot of my Omega theme rendering the comments outside the content zone.

hrhr, nice. as i wrote the commentsblock module :). fyi, it has a permission "view comments" bug, but a fix is in the issue queue there. havent had time to push a new release yet.