flex 语法介绍

	.container {
		display: flex;
		/*flex-wrap: wrap;
		flex-direction: row;*/
		/*flex-flow: row wrap; */ /*flex-wrap flex-direction集成*/

		/*justify-content: space-around; /*平分*/
		/*justify-content: space-between; /*左右两边没有边距*/
		/*justify-content: center; /*居中*/
		/*justify-content: flex-start; /*靠左*/
		/*justify-content: flex-end; /*靠右*/

		/*height:300;
		/*align-items: stretch; /*默认 拉伸*/
		/*align-items: flex-start; /*顶部*/
		/*align-items: flex-end; /*底部*/
		/*align-items: baseline; /*基线*/
		
		/*align-self*/
		height: 300px;
		justify-content: space-around;
		align-items: flex-start;
	}

	/*.item-1 {
		order: 1; /*控制html的顺序 最后*/
	/*}
	.item-5 {
		order: -1; /*控制html的顺序 最前面*/
	/*}
	.item-3 {
		order: -5;
	}
	/* order初识值为0 大于0 排后面, 小于0 排前面 */

	/*.item {
		flex-grow: 1; /*项目宽度*/
	/*}
	.item-3 {
		flex-grow: 9; /*使特别的html结构宽度变大*/
	/*}*/

	.item-1 {
		align-self: flex-end;
	}
	.item-2 {
		align-self: center;
	}
	.item-4 {
		align-self: center;
	}
	.item-5 {
		align-self: flex-end;
	}