Question

如果以前已经解决了这个问题，请道歉。我通过不透明度过渡了解了渐变的渐变，但是我很难将它们淡出。

我有一个div是一个链接，我的目标是当鼠标悬停在渐变淡入时，然后当鼠标离开该区域时淡出。

以下是指向相关CSS的jsfiddle的链接：http://jsfiddle.net/94KEZ/

这是div本身（不透明度设置为0）：

nav .nav-right {
    position: absolute;
    right: 0;
    top: 0;
    width: 8%;
    min-width: 110px;
    height: 100%;
    z-index: 8020;
    cursor: pointer;
    opacity: 0;
    transition: opacity 2.75s;
    -moz-transition: opacity 2.75s;
    -webkit-transition: opacity 2.75s;
    -o-transition: opacity 2.75s;
}

这是悬停的CSS（似乎工作正常......）

nav .nav-right:hover {
    opacity: 1;
    background: -moz-linear-gradient(left,  rgba(255,242,0,0) 0%, rgba(255,252,0,0) 80%, rgba(255,255,0,0.8) 100%); /* FF3.6+ */
    background: -webkit-gradient(linear, left top, right top, color-stop(0%,rgba(255,242,0,0)), color-stop(80%,rgba(255,252,0,0)), color-stop(100%,rgba(255,255,0,0.8))); /* Chrome,Safari4+ */
    background: -webkit-linear-gradient(left,  rgba(255,242,0,0) 0%,rgba(255,252,0,0) 80%,rgba(255,255,0,0.8) 100%); /* Chrome10+,Safari5.1+ */
    background: -o-linear-gradient(left,  rgba(255,242,0,0) 0%,rgba(255,252,0,0) 80%,rgba(255,255,0,0.8) 100%); /* Opera 11.10+ */
    background: -ms-linear-gradient(left,  rgba(255,242,0,0) 0%,rgba(255,252,0,0) 80%,rgba(255,255,0,0.8) 100%); /* IE10+ */
    background: linear-gradient(to right,  rgba(255,242,0,0) 0%,rgba(255,252,0,0) 80%,rgba(255,255,0,0.8) 100%); /* W3C */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#00fff200', endColorstr='#ccffff00',GradientType=1 ); /* IE6-9 */
    transition: opacity 5.75s;
    -moz-transition: opacity 5.75s;
    -webkit-transition: opacity 5.75s;
    -o-transition: opacity 5.75s;
}

我也试过这个，但它似乎没有效果：

nav .nav-right:link {
    opacity: 0;
    transition: opacity 2.75s;
    -moz-transition: opacity 2.75s;
    -webkit-transition: opacity 2.75s;
    -o-transition: opacity 2.75s;
}

我有什么东西在这里失踪吗？或者是不可能像这样过渡渐变的不透明度？

一如既往，感谢您提供的任何帮助和建议。我也愿意接受更好的方法来实现这一目标。

Answer 1

是的，可以转换不透明度。

但要这样做，背景必须是恒定的;也就是说，它必须设置在基本状态：

CSS

nav .nav-right {
    position: absolute;
    right: 0;
    top: 0;
    width: 50%;
    min-width: 110px;
    height: 100%;
    z-index: 8020;
    cursor: pointer;
    opacity: 0;
    transition: opacity 2.75s;
    -moz-transition: opacity 2.75s;
    -webkit-transition: opacity 2.75s;
    -o-transition: opacity 2.75s;
    background: -moz-linear-gradient(left,  rgba(255,242,0,0) 0%, rgba(255,252,0,0) 80%, rgba(255,255,0,0.8) 100%); /* FF3.6+ */
    background: -webkit-gradient(linear, left top, right top, color-stop(0%,rgba(255,242,0,0)), color-stop(80%,rgba(255,252,0,0)), color-stop(100%,rgba(255,255,0,0.8))); /* Chrome,Safari4+ */
    background: -webkit-linear-gradient(left,  rgba(255,242,0,0) 0%,rgba(255,252,0,0) 80%,rgba(255,255,0,0.8) 100%); /* Chrome10+,Safari5.1+ */
    background: -o-linear-gradient(left,  rgba(255,242,0,0) 0%,rgba(255,252,0,0) 80%,rgba(255,255,0,0.8) 100%); /* Opera 11.10+ */
    background: -ms-linear-gradient(left,  rgba(255,242,0,0) 0%,rgba(255,252,0,0) 80%,rgba(255,255,0,0.8) 100%); /* IE10+ */
    background: linear-gradient(to right,  rgba(255,242,0,0) 0%,rgba(255,252,0,0) 80%,rgba(255,255,0,0.8) 100%); /* W3C */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#00fff200', endColorstr='#ccffff00',GradientType=1 ); /* IE6-9 */
}

nav .nav-right:link {
    opacity: 0;
    transition: opacity 2.75s;
    -moz-transition: opacity 2.75s;
    -webkit-transition: opacity 2.75s;
    -o-transition: opacity 2.75s;
}

nav .nav-right:hover {
    opacity: 1;
    transition: opacity 2.75s;
    -moz-transition: opacity 2.75s;
    -webkit-transition: opacity 2.75s;
    -o-transition: opacity 2.75s;
}

updated demo

从a：hover到a：link的转换时，无法获得CSS渐变淡出

1 个答案: