use white-space:pre-wrap for spaces make effect

[helderjnpinto]

The white spaces are not rendered:
The normal behavior for the display of whitespaces is to compress them into a single one, which is then displayed.

There are two exceptions from that:

The pre tag, which keeps the whitespaces as entered.
Setting the CSS property white-space: pre; (respectively pre-wrap or pre-line)

Ex:

in the code we can add a simple style for childs with white-space style.

Result in to this render:

[LianaHus]

@helderjnpinto thanks for the PR