网上搜索得到: It changes the position because the position is based on the popover's dimansions and select2 changes that. The proper way would be to style select2 (check their documentation) and then change the positionning. If you want a quick fix for pos
本文译自[http://j4n.co/blog/Creating-your-own-css-grid-system],英语好的,可直接查看原网页,不需要FQ. 翻译拿不准的地方会有英文原文,方便大家理解. 一般的网格布局如下 可以看出主要有以下几个部分 a container(容器) rows(行) columns(列) gutters (the space between columns)(列边距) 容器 容器的目的就是设置整个网格的宽度,通常设置为100%,但可能要给大屏显示器设置一个最大宽