<!DOCTYPE html> <html> <head><style> div.a { -moz-column-count: 2; overflow-y: hidden; background: yellow; } div.b { background: orange; clear: both; margin-top: 946982.46874999995cm; } div.c { position: fixed; background: red; } </style></head> <body ><div class="a"><div ><div class="b"><li></li></div ><div class="c"></div ></div></div ></body> </html>