Fullwidth boxes – height/width

Hi
I am using the “fullwidth boxes” shortcode from this page:
http://hb-themes.com/themes/aegaeus_wp/fullwidth-boxes/

Code:
[boxes margin_top=”0px”]
[box size=”one-third” icon=”cloud icon” title=”xxxxxx” link=”#” last_column=”false” new_tab=”false”]
xxx xxxx xxxx xxxxxxx xxxxxxx xxxxxxxxx x xxxx xxxxx
xxxx
[/box]
[box size=”one-third” icon=”cloud icon” title=”yyyyyyy” link=”#” last_column=”false” new_tab=”false”]
xxx xxxx xxxx xxxxxxx xxxxxxx xxxxxxxxx x
[/box]
[box size=”one-third” icon=”cloud icon” title=”zzzzzzz” link=”#” last_column=”false” new_tab=”false”]
xxx xxxx xxxx xxxxxxx xxxxxxx xxxxxxxxx xxxxxxxxxx xxxxxx xxxxxxxxx xxxxxxxx xxxxxxxx xxx xxx xxxx xxxx xxxxxxx xxxxxxx xxxxxxxxx x
[/box]
[/boxes]

Problem 1: Width
The width is depending on the text length. I would like to have 3 or 4 boxes with exact same width.

I tried to only set every third box to have last_column=”true”, but it does not work, they stack vertically (instead of rows of 3). It will only appear as the example if I set it to true for EVERY box, but then the third box is stacked under the two first ones (and the separator between them are gone).

Problem 2: Height:
The width (if you mouse-over) is depending on the no. of lines. I would like to have the 3 or 4 boxes with exact same height, when mouse-over.

Do I miss something in the code?