JavaScript编写页面半透明遮罩效果的简单示例

网络编程 2024/11/13 佚名

3 2 1

半透明遮罩层效果基本上都是使用插件实现的，下面为大家分享下使用原生js实现半透明遮罩效果，感兴趣的朋友可以参考下哈，希望对你熟悉原生js有所帮助

<div > 
<h4><span>现在注册</span><span >关闭</span></h4> 
<p> 
<label> 用户名</label> 
<input type="text" class="myinp" onmouseover="this.style.border='1px solid #f60'" onfoucs="this.style.border='1px solid #f60'" onblur="this.style.border='1px solid #ccc'" /> 
</p> 
<p> 
<label> 密　码</label> 
<input type="password" class="myinp" onmouseover="this.style.border='1px solid #f60'" onfoucs="this.style.border='1px solid #f60'" onblur="this.style.border='1px solid #ccc'" /> 
</p> 
<p> 
<input type="submit" value="注册" class="sub" /> 
<input type="reset" value="重置" class="sub" /> 
</p> 
</div> 
<div ></div><!-- 遮罩层div--> 
<script type="text/javascript"> 
var myAlert = document.getElementById("alert"); 
var myMask=document.getElementById('mask'); 
var reg = document.getElementById("content").getElementsByTagName("a")[0]; 
var mClose = document.getElementById("close"); 
reg.onclick = function() 
{ 
myMask.style.display="block"; 
myAlert.style.display = "block"; 
myAlert.style.position = "absolute"; 
myAlert.style.top = "50%"; 
myAlert.style.left = "50%"; 
myAlert.style.marginTop = "-75px"; 
myAlert.style.marginLeft = "-150px"; 
document.body.style.overflow = "hidden"; 
} 
mClose.onclick = function() 
{ 
myAlert.style.display = "none"; 
myMask.style.display = "none"; 
} 
</script> 
</body> 
</html>

全屏幕遮盖

<!DOCTYPE html>
<style>
#mask {
 position:fixed;width:100%;
 top:0px;left:0px;
 _position:absolute;
 _top:expression(documentElement.scrollTop);
 background:rgba(0,0,0,0.5);
 background:transparent\9;
 filter:progid:DXImageTransform.Microsoft.Gradient(
 startColorStr=#80000000,endColorStr=#80000000
 );
 display:none;
}
#mask_td {text-align:center;}
</style>
<img
 src="/UploadFiles/2021-04-02/TheMagicConch.jpg">

JavaScript,透明,遮罩,div