防止图像具有未定义的模糊边缘可以通过添加负边距来实现,但是在 CSS 转换期间这会失败。在添加或删除滤镜模糊类时,如何在 CSS 过渡期间保持图像边缘的定义?
测试于:
- Firefox 37:效果很好!
- Chrome 42:图像和 父元素遇到闪烁/模糊/未定义的图像
- IE9:没那么多...
查看我的示例:Codepen
HTML:
<link href='http://fonts.googleapis.com/css?family=Montserrat' rel='stylesheet' type='text/css'>
<link href='http://fonts.googleapis.com/css?family=Hind' rel='stylesheet' type='text/css'>
<div class="container">
<img class="blur" src="http://budgetstockphoto.com/bamers/stock_photo_spectrum.jpg"/>
</div>
<div class="col">
<h2 class="montserrat">Hover Over Image</h2>
<hr>
<p class="hind">Preventing an image from having undefined blurry edges can be achieved by adding negative margin, but during a CSS transition this fails. As you can see, on-hover, the edges of the image become undefined/blurred. How can you keep the edges of an image defined during a CSS transition while applying or removing filter blur?<br><br>Hover over the image!</p>
</div>
CSS:
html,body{
margin:0;
text-align:center;
background:#F8F8F8;
height:100%;
}
h2{
margin:1em 0;
padding:0;
line-height:1;
color:#111;
}
p{
margin:1em 0;
padding:0;
line-height:1;
text-align:justify;
color:#999;
}
.montserrat{
font-family: 'Montserrat', sans-serif;
}
.hind{
font-family: 'Hind', sans-serif;
}
hr {
width:100%;
display: block;
height: 1px;
border: 0;
border-top: 1px solid #222;
margin: 1em 0;
padding: 0;
line-height:0;
}
.col{
max-width:400px;
display:inline-block;
height:100%;
float:left;
background:#333;
padding-left:20px;
padding-right:20px;
}
.container{
top: 50%;
left: 50%;
transform: translate(-50%,-50%);
width:10%;
display:inline-block;
padding-top:10%;
position:absolute;
overflow:hidden !important;
border-radius:50%;
-webkit-filter: blur(0px); -moz-filter: blur(0px); -o-filter: blur(0px); -ms-filter: blur(0px); filter: blur(0px);/*prevents image from overflowing*/
}
.container img{
position:absolute;
min-width:calc(100% + 30px);
height:calc(100% + 30px);
left:-15px;
right:-15px;
top:-15px;
bottom:-15px;
-webkit-transition: .5s ease-in-out;
}
.blur{
-webkit-filter: blur(5px); -moz-filter: blur(5px); -o-filter: blur(5px); -ms-filter: blur(5px); filter: blur(5px);
}
一点jQuery:
$(document).ready(function(){
$('img').hover(function(){
$(this).toggleClass('blur');
});
});
最佳答案
在 Chrome 上你可以添加
backface-visibility: hidden;
在您的图片上,它修复了一些模糊问题。
关于jquery - CSS 滤镜模糊 : Prevent Undefined Image Edges on a Blurred Image during CSS Transition,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/30079452/