How to use source css3 to implement a ring loading progress bar

This time I will show you how to use Yuanshengcss3 to realize ring loading Progress bar, and use Yuanshengcss3 to realize ring loading progress bar What are the precautions, as follows This is a practical case, let’s take a look at it.

Rendering:

The requirement at that time was to make the progress bar gradient in a fan shape Effects loading. I thought about it for a long time, and it seems that the only way to make a gradient image is to use border-img. Another super stupid method is to write 50 rectangles distributed on the progress bar. The gradients provided by css3 include linear gradients, radial gradients and repeating gradients. I can't figure out how to achieve a fan-shaped gradient. No more talking, let’s get to the code:

nbsp;html>


	<meta>
	<title>Document</title>
	<style>
	*{
		margin: 0;
		padding: 0;
	}
	.wrap,.circle,.percent{
		position: absolute;
		width: 200px;
		height: 200px;
		border-radius: 50%;
	}
	.wrap{
		top:50px;
		left:50px;
		background-color: #ccc;
	}
	.circle{
		box-sizing: border-box;
		border:20px solid #ccc;
		clip:rect(0,200px,200px,100px);
	}
	.clip-auto{
		clip:rect(auto, auto, auto, auto);
	}
	.percent{
		box-sizing: border-box;
		top:-20px;
		left:-20px;
	}
	.left{
		transition:transform ease;
		border:20px solid blue;
		clip: rect(0,100px,200px,0);
	}
	.right{
		border:20px solid blue;
		clip: rect(0,200px,200px,100px);
	}
	.wth0{
		width:0;
	}
	.num{
		position: absolute;
		box-sizing: border-box;
		width: 160px;
		height: 160px;
		line-height: 160px;
		text-align: center;
		font-size: 40px;
		left: 20px;
		top: 20px;
		border-radius: 50%;
		background-color: #fff;
		z-index: 1;
	}
	</style>
	<script></script>


<p>
	</p><p>
		</p><p></p>
		<p></p>
	
	<p><span>0</span>%</p>


<script>
	var percent=0;
	var loading=setInterval(function(){
		if(percent>100){
			percent=0;
			$(&#39;.circle&#39;).removeClass(&#39;clip-auto&#39;);
			$(&#39;.right&#39;).addClass(&#39;wth0&#39;);
		}else if(percent>50){
			$(&#39;.circle&#39;).addClass(&#39;clip-auto&#39;);
			$(&#39;.right&#39;).removeClass(&#39;wth0&#39;);
		}
		$(&#39;.left&#39;).css("-webkit-transform","rotate("+(18/5)*percent+"deg)");
		$(&#39;.num>span&#39;).text(percent);
		percent++;
	},200);
</script>

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the PHP Chinese website!

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