Bootstrap / Flex / CSS
Are Bootstrap / Flex / CSS supported?
Yes, as of IronPdf release version 2021.9.3678, which features our brand new pixel perfect Chrome rendering engine.
Using the older WebKit engine - IronPDF supports HTML 5, Bootstrap 3 and CSS 3.
CSS columns and Flex are not fully supported in WebKit, so please consider alternative structures, including tables.
CSS classes that emulate Flexbox for simple use cases are [table, table-row, table-cell]