Reponsive Equal Height Columns In HTML CSS

How to create responsive equal height columns in HTML CSS. == LINKS & CODE DOWNLOAD == https://code-boxx.com/equal-height-columns-html-css/ == CODE BOXX EBOOK STORE == https://payhip.com/codeboxx == CHAPTERS == 0:05 Flex Layout 0:55 Grid Layout 1:26 Display As Table 2:06 Padding Trick 3:01 Faux Columns