https://api.jquery.com/outerHeight/
.outerHeight() | jQuery API Documentation
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https://github.com/jquery/jquery/issues/3982
outerHeight(true) does not handle negative margins properly (starting with 3.3.x release) ยท Issue...
Hello, outerHeight(true) does not handle negative margins properly (starting with 3.3.x release). This was working fine in 3.2.x. 3.2.1:...
starting withouterheighttruehandlenegative