Ahhh.... wait!
The problem is not what I was thinking, the problem is with the translation!
See the two attachments.
The text is so long that pushes the buttons, that normally are on the same line, down making them appear as two rows of buttons.
If you want to give it some spacing, you can add some margin:
#post_confirm_buttons span, #post_confirm_buttons input {
margin-top: 0.75em;
}
Otherwise you can force the buttons below the legend:
.shortcuts {
float: none;
display: block;
text-align: left;
}