MatchHeight automatically adapts window resizing. Also manual upate is available with `MatchHeight.update()`. When DOM has been changed (insert/remove), call `MatchHeight.init()` to watch new structure.

If you need to load the JS file in head tag, `MatchHeight.init()` after DOMContentLoaded

title
text text
footer
title
long long long long long long long text
footer
long long long long title
text text
footer
title
text text
footer
title
text text
footer
text text
text text
footer