<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style>
img {
33%;
height: auto;
float: left;
max- 235px;
}
.blur {-webkit-filter: blur(4px);filter: blur(4px);}
.brightness {-webkit-filter: brightness(250%);filter: brightness(250%);}
.contrast {-webkit-filter: contrast(180%);filter: contrast(180%);}
.grayscale {-webkit-filter: grayscale(100%);filter: grayscale(100%);}
.huerotate {-webkit-filter: hue-rotate(180deg);filter: hue-rotate(180deg);}
.invert {-webkit-filter: invert(100%);filter: invert(100%);}
.opacity {-webkit-filter: opacity(50%);filter: opacity(50%);}
.saturate {-webkit-filter: saturate(7); filter: saturate(7);}
.sepia {-webkit-filter: sepia(100%);filter: sepia(100%);}
.shadow {-webkit-filter: drop-shadow(8px 8px 10px green);filter: drop-shadow(8px 8px 10px green);}
</style>
</head>
<body>
<img src="image/321.jpg" alt="Pineapple" width="300" height="300">
<img class="blur" src="image/321.jpg" alt="Pineapple" width="300" height="300">
<img class="brightness" src="image/321.jpg" alt="Pineapple" width="300" height="300">
<img class="contrast" src="image/321.jpg" alt="Pineapple" width="300" height="300">
<img class="grayscale" src="image/321.jpg" alt="Pineapple" width="300" height="300">
<img class="huerotate" src="image/321.jpg"alt="Pineapple" width="300" height="300">
<img class="invert" src="image/321.jpg" alt="Pineapple" width="300" height="300">
<img class="opacity" src="image/321.jpg" alt="Pineapple" width="300" height="300">
<img class="saturate" src="image/321.jpg" alt="Pineapple" width="300" height="300">
<img class="sepia" src="image/321.jpg"alt="Pineapple" width="300" height="300">
<img class="shadow" src="image/321.jpg" alt="Pineapple" width="300" height="300">
</body>
</html>
-webkit-filter是CSS3属性，提供10种滤镜
- grayscale 灰度
- sepia 褐色
- saturate 饱和度
- hue-rotate 色相旋转
- invert 反色
- opacity 透明度
- brightness 亮度
- contrast 对比度
- blur 模糊
- drop-shadow 阴影