.dropload-up,
.dropload-down {
	position: relative;
	height: 0;
	overflow: hidden;
	font-size: 24px;
	/* 开启硬件加速 */
	-webkit-transform: translateZ(0);
	transform: translateZ(0);
}

.dropload-down {
	height: 50px;
}

.dropload-refresh,
.dropload-update,
.dropload-load,
.dropload-noData {
	height: 50px;
	line-height: 50px;
	text-align: center;
}

.dropload-load .loading {
	display: inline-block;
	height: 15px;
	width: 15px;
	border-radius: 100%;
	margin: 6px;
	border: 2px solid #666;
	border-bottom-color: transparent;
	vertical-align: middle;
	-webkit-animation: rotate 0.75s linear infinite;
	animation: rotate 0.75s linear infinite;
}

@-webkit-keyframes rotate {
	0% {
		-webkit-transform: rotate(0deg);
	}
	50% {
		-webkit-transform: rotate(180deg);
	}
	100% {
		-webkit-transform: rotate(360deg);
	}
}

@keyframes rotate {
	0% {
		transform: rotate(0deg);
	}
	50% {
		transform: rotate(180deg);
	}
	100% {
		transform: rotate(360deg);
	}
}

.opacity {
	-webkit-animation: opacity 0.5s linear;
	animation: opacity 0.5s linear;
}

@-webkit-keyframes opacity {
	0% {
		opacity: 0;
	}
	100% {
		opacity: 1;
	}
}

@keyframes opacity {
	0% {
		opacity: 0;
	}
	100% {
		opacity: 1;
	}
}