How to Center in CSSWatCentering in CSS is a pain in the ass. There seems to be a gazillion ways to do it, depending on a variety of factors. This consolidates them and gives you the code you need for each situation. Select the type of content you want to center in a parent <div> and the size of the parent.
親要素の縦横中央に内容を寄せられる「centerr」:phpspot開発日誌
