关于纯css写三角形在firefox下的锯齿问题

时间:2020-12-08 19:48:05

相信很多人都用过利用border来实现小三角箭头,百度一下,这类的文章多如牛毛,这里我还是啰嗦点把常用的方法陈列出来:

.triangle_border_up{
width:;
height:;
border-width:0 30px 30px;
border-style:solid;
border-color:transparent transparent #333;/*透明 透明 灰*/
margin:40px auto;
position:relative;
}

或者:

.border_bottom{
width:;
height:;
border:10px solid transparent;
border-bottom: 11px solid #000;
}

这样写都有个问题,就是在firefox里面会有锯齿,看着就不爽,如下左图,这是放大后的,三角越小锯齿越明显,其他浏览器很润滑,下面的右图。

aaarticlea/png;base64,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" alt="" />aaarticlea/png;base64,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" alt="" />

在网上搜索很少有人提到,有提到的好像也没实际解决,下面介绍个非常简单的方法,就是给有颜色的那个border宽度多加一个像素:

.border_bottom{
width:;
height:;
border:50px solid transparent;
border-bottom: 51px solid #000;
}

aaarticlea/png;base64,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" alt="" />

是不是很滑....