The site parameters are located in config/_default/params.toml
by default.

This article offers some use cases for showing how to resize and align images.
This article shows how to use the alert
shortcode.
A detailed description of media shortcodes, such as Bilibili, Tencent, Youku, iQiyi and Netease Music.
A detailed description of online IDE shortcodes, such as JSFiddle, CodePen, JSRun.