row; 列靠左(頭)| row-reverse; 列靠右(尾)| column; 欄靠上(頭)| column-reverse; 欄靠下(尾)
row; flex-start; 列靠左(頭)| row; flex-end; 列靠右(尾)| row-reverse; flex-start; 列靠右(頭)| row;-reverse; flex-end; 列靠左(尾)
column; flex-start; 欄靠上(頭)| column; flex-end; 欄靠下(尾)| column-reverse; flex-start; 欄靠下(頭)| column-reverse; flex-end; 欄靠上(尾)
row; flex-start; (頭,左上)| row; flex-end; (尾,左下)| row-reverse; flex-start; (頭,右上)| row-reverse; flex-end; (尾,右下)
column; flex-start; (頭,左上)| column; flex-end; (尾,右上)| column-reverse; flex-start; (頭,左下) | column-reverse; flex-end; (尾,右下)
x 軸置中.分散對齊 flex-direction: row; justify-content: center;| space-around; | space-between; | space-evenly;
y 軸置中.分散對齊 flex-direction: column; justify-content: center;| space-around; | space-between; | space-evenly;
center 置中 | 若無設定高度,align-items預設stretch至元素垂直最高度。
預設nowrap | wrap: 當內容太多時,換到下一行 | wrap-reverse: 換行時元素排序反轉
flex-start; 整段靠頭(上) | flex-end; 整段靠尾(下) | center; 整段置中 | stretch; 整段分散對齊 | space-around; 均分整段.上下留白 | space-between; 均分整段上下留白,但不含最上與最下