Footer in plugin install/update screen needs clearing

[scribu]

Whenever I do a plugin install or update, there's some space between the admin footer and the bottom of the screen.

This is probably caused by a missing <br class="clear">.

(In [16735]) remove redundant require()s in wp-admin/update.php. See #15679

It seems all the <div class="clear"></div> are in place. There's another CSS issue I can't seem to put my finger on.

Hmm. Can't reproduce on Chrome or Firefox stable.

I thinks issue is with class

body.update-php {
    height: 98%;
}

if you disable this height parameter everything goes well

Good catch. We have to find a way to apply it only to the iframe.

(In [16937]) Limit height only to iframe body. Fixes #15679