


Code example analysis of js click button to implement pop-up video effect with mask layer
This article mainly introduces the jsclicking the button to achieve the pop-up video effect with a mask layer. Friends who need it can refer to the
example of this article. js click the button to achieve the pop-up video effect with a mask layer, which involves css and JavaScript. I share it with you for your reference. The specific content is as follows
The final display effect: click the red button, and it will A video screen pops up with a mask layer
Click the yellow area to close the video and return to the original state.
Main code of the page: main mainly contains an a, which controls the displayed button. Set with id value.
<p class="main"> <a href="javascript:;" class="video" id="video"></a> </p>
The following code is used to control the display effect of the video. .video-btn includes the video display area and the yellow close button on the right (although the yellow close button is a bit ugly).
id="shadow" is used to control the mask layer. The main thing is to set the id value of each element, and then js can easily call each element.
<p class="video-btn" id="video-btn"> <p class="video-area" id="video-area"></p> <a class="video-shut" id="video-shut">x</a> </p> <p id="shadow"></p>
Let’s take a look at the css
First set the video-btn area.
.video-btn{ position: absolute; width:600px; height: 300px; background:black; top:50%; left: 50%; margin-top: -150px; margin-left:-300px; display: none; z-index: 101; } .video-area{ float:left; width:500px; height: 300px; background:red; } .video-shut{ height:100px; width:100px; font-size:40px; color:pink; float:left; text-align: center; /*line-height: 50px;*/ background: yellow; display: block; padding-top:30px; }
Then set the css of the mask layer
#shadow{ position: absolute; opacity: 0.5; filter:alpha(opacity=50); bottom:0; left: 0; right: 0; top: 0; background:black; z-index: 100; display: none; }
Key point 1: Be sure to set the two p's here to Absolute positioning takes it out of the document flow.
Point 2: The mask layer should set the bottom, left, right and top values to 0 so that the mask layer can tile the entire screen.
Point 3: Be sure to set these two p's to display: none. Let the user not see these two p's at the beginning, otherwise it will be ugly to see these two as soon as they enter.
Point 4: To set the z-index value, the priority of the yellow button and the p that displays the video must be greater than the priority of the mask layer. Otherwise you can't click.
Now start js: get the id assignment for the first five. Then respond to the event when the yellow button is clicked.
Click event 1: Set the p where the video is located to display: block. Set the p where the mask layer is located to display: block. At the same time, Tudou video is displayed in the video screen p. This link is the sharing link of Tudou.com.
Click event 2: When clicking the yellow x button, these two p's should be hidden. That is, set the display of two p: none.
<script> var obtn=document.getElementById('video'); var ovideo=document.getElementById('video-btn'); var oatn=document.getElementById('video-area'); var oshut=document.getElementById('video-shut'); var oshadow=document.getElementById('shadow'); obtn.onclick=function () { ovideo.style.display='block'; oshadow.style.display='block'; oatn.innerHTML='<embed src="http://www.tudou.com/v/Bs_lZPxcoRs/& rpid=818231113&autoPlay=true&resourceId=818231113_04_05_99/v.swf" allowFullScreen="true" quality="high" width="500" height="300" align="middle" allowScriptAccess="always" flashvars ="isAutoPlay=true" type="application/x-shockwave-flash"> </embed>'; } oshut.onclick= function () { ovideo.style.display='none'; oshadow.style.display='none'; } </script>

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