html - CSS - 如何使单词的结尾变得模糊？

Question

当您将光标移动到包含消息的框上时，我真的很喜欢 twitter 如何模糊长名称的结尾。

我想尝试做一些类似的东西，但有一点不同——我有一个 DIV(比如 width: 100px;)，当里面的文本长于 100px 时——那么将是相应文本的结尾模糊...

谁能给我一些例子/来源/建议，怎么做？

谢谢

Answer 1

使用以下 HTML:

<div>
    <span>@someUserName</span>
</div>​

和 CSS:

span {
    display: inline-block;
    position: relative;
}

span::after {
    position: absolute;
    top: 0;
    bottom: 0;
    right: 0;
    width: 3em;
    content: '';
    background: -moz-linear-gradient(left, rgba(255,255,255,0) 0%, rgba(255,255,255,1) 100%); /* FF3.6+ */
    background: -webkit-gradient(linear, left top, right top, color-stop(0%,rgba(255,255,255,0)), color-stop(100%,rgba(255,255,255,1))); /* Chrome,Safari4+ */
    background: -webkit-linear-gradient(left, rgba(255,255,255,0) 0%,rgba(255,255,255,1) 100%); /* Chrome10+,Safari5.1+ */
    background: -o-linear-gradient(left, rgba(255,255,255,0) 0%,rgba(255,255,255,1) 100%); /* Opera 11.10+ */
    background: -ms-linear-gradient(left, rgba(255,255,255,0) 0%,rgba(255,255,255,1) 100%); /* IE10+ */
    background: linear-gradient(left, rgba(255,255,255,0) 0%,rgba(255,255,255,1) 100%); /* W3C */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#00ffffff', endColorstr='#ffffff',GradientType=1 ); /* IE6-9 */
}​

JS Fiddle demo .

当然，您也可以在生成的内容中使用百分比宽度:JS Fiddle proof of concept .

---

编辑 以响应下面的评论，报告 IE 8(可能更低)不适用于上述解决方案:

not working for me in IE8 though...

我已将 HTML 更新为以下内容:

<div>
    <span>@someUserName
        <!--[if ie]>
            <span class="ieFadeout"></span>
        <![endif]-->
    </span>
</div>​

并更新了 CSS:

div > span {
    display: inline-block;
    position: relative;
}

div > span::after {
    position: absolute;
    top: 0;
    bottom: 0;
    right: 0;
    width: 3em;
    content: '';
    background: -moz-linear-gradient(left, rgba(255,255,255,0) 0%, rgba(255,255,255,1) 100%); /* FF3.6+ */
    background: -webkit-gradient(linear, left top, right top, color-stop(0%,rgba(255,255,255,0)), color-stop(100%,rgba(255,255,255,1))); /* Chrome,Safari4+ */
    background: -webkit-linear-gradient(left, rgba(255,255,255,0) 0%,rgba(255,255,255,1) 100%); /* Chrome10+,Safari5.1+ */
    background: -o-linear-gradient(left, rgba(255,255,255,0) 0%,rgba(255,255,255,1) 100%); /* Opera 11.10+ */
    background: -ms-linear-gradient(left, rgba(255,255,255,0) 0%,rgba(255,255,255,1) 100%); /* IE10+ */
    background: linear-gradient(left, rgba(255,255,255,0) 0%,rgba(255,255,255,1) 100%); /* W3C */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#00ffffff', endColorstr='#ffffff',GradientType=1 ); /* IE6-9 */
}

span > .ieFadeout {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 3em;
    background-color: transparent;
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#00ffffff', endColorstr='#ffffff',GradientType=1 ); /* IE6-9 */

}​

JS Fiddle demo, working in Win XP/IE 8, and Chrome 18 (as before) .

引用资料:

• Conditional Comments for IE .
• CSS Gradient generator .
• CSS linear gradients .