height：使用不同的定位时，auto属性会搞乱

I'm trying to make a module for a website. This module will include a heading, text, and an image. I would like the webmaster to be able to insert as many of these modules as he likes into a page and ideally he should be able to type as much as he wants in a module and have it auto adjust to the proper height.I'm trying to make a module for a website. This