/* 布局样式 */
.flex{
	display: flex;
}
.flex-wrap{
	display: flex;
	flex-wrap: wrap;
}
.flex-vertical-center{
	display: flex;
	align-items:center;
}
.flex-vertical-center2{
	display: flex;
	align-items:center;
	flex-direction: column;
}
.flex-cross-centser{
	display: flex;
	justify-content: center;
}
.flex-all-center{
	display: flex;
	align-items:center;
	justify-content: center;
}

.flex-all-center2{
	display: flex;
	align-items:center;
	justify-content: center;
	flex-direction: column;
}