【问题标题】:How to make exception in coding for safari visitors?如何在为野生动物园游客编码时例外?
【发布时间】:2013-05-20 07:58:13
【问题描述】:

在我的部分代码中,我有 CSS3 动画,它似乎在 safari 上效果不佳,但在其他浏览器上没问题,所以,我想做例外,如果浏览器是 safari,那么它会忽略代码的动画部分。 这是我的代码:

download-music {
background: transparent url(../images/dl-music.png) 0 0 no-repeat;
float:left;
width:110px;
height:39px;
text-indent:-9999px;
opacity:0.5;
   -webkit-opacity: 0.5;
   -moz-opacity: 0.5;
filter:alpha(opacity=40); /* For IE8 and earlier */
transition: opacity .45s ease-in-out;
   -moz-transition: opacity .45s ease-in-out;
   -webkit-transition: opacity .45s ease-in-out;   /* EXCEPTION FOR HERE */
   -o-transition: opacity .45s ease-in-out;

}

.download-music:hover {-webkit-opacity:1 !important; -o-opacity:1; -moz-opacity:1; filter:alpha(opacity=100); }

【问题讨论】:

    标签: css exception css-animations


    【解决方案1】:

    选择器技巧

    1.

    /* Safari 2/3 */
    html[xmlns*=""] body:last-child .selector {} 
    html[xmlns*=""]:root .selector  {}
    

    2.

    /* Safari 6- and Chrome 24- */
    ::made-up-pseudo-element, .selector {}
    

    3.

    /* Safari 2/3.1, Opera 9.25 */
    *|html[xmlns*=""] .selector {}
    

    媒体查询技巧

    /* Safari 3+, Chrome */
    @media screen and (-webkit-min-device-pixel-ratio:0) {}
    

    JavaScript 技巧

    1.

    /* Safari 5- */
    var isSafari = /a/.__proto__=='//';
    

    2.

    /* Safari */
    var isSafari = /Constructor/.test(window.HTMLElement);
    

    来源:http://browserhacks.com/

    【讨论】:

      【解决方案2】:

      放弃前缀opacity,所有浏览器都支持它已经有几年了。它会干扰您的过渡声明。这应该在所有浏览器中都能正常工作。

      .download-music {
        background: transparent url(../images/dl-music.png) 0 0 no-repeat;
        float:left;
        width:110px;
        height:39px;
        text-indent:-9999px;
        opacity:0.5;
        filter:alpha(opacity=40); /* For IE8 and earlier */
        -moz-transition: opacity .45s ease-in-out;
        -webkit-transition: opacity .45s ease-in-out;
        -o-transition: opacity .45s ease-in-out;
        transition: opacity .45s ease-in-out;
      }
      
      .download-music:hover { 
        opacity:1;
        filter:alpha(opacity=100); 
      }
      

      【讨论】:

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