/*  -- flex弹性布局 -- */

.flex {
	display: flex;
}

.basis-xs {
	flex-basis: 20%;
}

.basis-sm {
	flex-basis: 40%;
}

.basis-df {
	flex-basis: 50%;
}

.basis-lg {
	flex-basis: 60%;
}

.basis-xl {
	flex-basis: 80%;
}

.flex-sub {
	flex: 1;
}

.flex-twice {
	flex: 2;
}

.flex-treble {
	flex: 3;
}

.flex-direction {
	flex-direction: column;
}

.flex-wrap {
	flex-wrap: wrap;
}

.align-start {
	align-items: flex-start;
}

.align-end {
	align-items: flex-end;
}

.align-center {
	align-items: center;
}

.align-stretch {
	align-items: stretch;
}

.self-start {
	align-self: flex-start;
}

.self-center {
	align-self: flex-center;
}

.self-end {
	align-self: flex-end;
}

.self-stretch {
	align-self: stretch;
}

.align-stretch {
	align-items: stretch;
}

.justify-start {
	justify-content: flex-start;
}

.justify-end {
	justify-content: flex-end;
}

.justify-center {
	justify-content: center;
}

.justify-between {
	justify-content: space-between;
}

.justify-around {
	justify-content: space-around;
}

/* margin跟padding间距 */
/* 外边距 */
.margin-xs {
	margin: 20rpx;
}

.margin-sm {
	margin: 30rpx;
}

.margin-md {
	margin: 40rpx;
}

.margin-lg {
	margin: 50rpx;
}


/* 内边距 */
.padding-xs {
	padding: 20rpx;
}

.padding-sm {
	padding: 30rpx;
}

.padding-md {
	padding: 40rpx;
}

.padding-lg {
	padding: 50rpx;
}