演示：jsFiddle

Question

我正在尝试为背景图像设置动画，以便当您无限地悬停链接时（只要您在链接上盘旋）将在905和100％之间来回移动。我创建了一个JSFiddle来玩，但它并没有真正过渡到任何动画，而只是移动背景。 JSFiddle

CSS

a{display: block; background: url('thin-right-arrow.png') no-repeat right center; widht: 100%:}

a                   {background-position: 90% center;}

a:hover     {background-position: 100% center; -webkit-animation: animatedBackground 40s linear infinite;} 

@keyframes animatedBackground {
    from { background-position: 90% center; }
    to { background-position: 100% center; }
}

Answer 1

您需要@-webkit-keyframes animate才能让动画在-webkit浏览器中使用。

_{注意，我还没有添加任何其他供应商，因此仅在-webkit浏览器中工作。}

如果您希望动画在上悬停在链接(example)上，则不需要JS / jQuery。但是，如果您希望动画在将鼠标悬停在链接上时开始，然后无限制地进行，则以下是基于jQuery的解决方案：jsFiddle example

jQuery的：

$('a').hover(function(){
    $(this).addClass('animate');
});

CSS：

.animate {
    background-position: 90% center;
    -webkit-animation: animate 4s infinite;
}
@-webkit-keyframes animate {
    50% {
        background-position: 100% center;
    }
}

Answer 2

首先，你的动画在40秒时确实很慢。其次，您需要包含所有供应商前缀版本的关键帧。您刚刚忘记了-webkit个关键帧。

注意：不需要jquery / javascript

如果您想在取消悬停后箭头顺利返回，只需添加transition及其供应商前缀好友

编辑：看起来你想要在悬停时来回平滑，而不是在一个方向上平滑连续。相同的概念只需更改关键帧：

演示：jsFiddle

a {
    background-position: 90% center;

    -webkit-transition: background-position 0.3s linear;  /* Chrome 1-25, Safari 3.2+ */
    -moz-transition: background-position 0.3s linear;  /* Firefox 4-15 */
    -o-transition: background-position 0.3s linear;  /* Opera 10.50–12.00 */
    transition: background-position 0.3s linear;  /* Chrome 26, Firefox 16+, IE 10+, Opera 12.10+ */
}

a:hover {
    background-position: 100% center;

    -moz-animation: animatedBackground 2s infinite linear;
    -o-animation: animatedBackground 2s infinite linear;
    -webkit-animation: animatedBackground 2s infinite linear;
    animation: animatedBackground 2s infinite linear;
}

@-moz-keyframes animatedBackground {
    0% {
        background-position: 90% center;
    }
    50% {
        background-position: 100% center;
    }
    100% {
        background-position: 90% center;
    }
}
@-webkit-keyframes animatedBackground {
    0% {
        background-position: 90% center;
    }
    50% {
        background-position: 100% center;
    }
    100% {
        background-position: 90% center;
    }
}
@-o-keyframes animatedBackground {
    0% {
        background-position: 90% center;
    }
    50% {
        background-position: 100% center;
    }
    100% {
        background-position: 90% center;
    }
}
@-ms-keyframes animatedBackground {
    0% {
        background-position: 90% center;
    }
    50% {
        background-position: 100% center;
    }
    100% {
        background-position: 90% center;
    }
}
@keyframes animatedBackground {
    0% {
        background-position: 90% center;
    }
    50% {
        background-position: 100% center;
    }
    100% {
        background-position: 90% center;
    }
}

这是连续（向右）箭头版本：

演示：jsFiddle

a {
    background-position: 90% center;

    -webkit-transition: background-position 0.3s linear;  /* Chrome 1-25, Safari 3.2+ */
    -moz-transition: background-position 0.3s linear;  /* Firefox 4-15 */
    -o-transition: background-position 0.3s linear;  /* Opera 10.50–12.00 */
    transition: background-position 0.3s linear;  /* Chrome 26, Firefox 16+, IE 10+, Opera 12.10+ */
}

a:hover {
    background-position: 100% center;

    -moz-animation: animatedBackground 2s infinite linear;
    -o-animation: animatedBackground 2s infinite linear;
    -webkit-animation: animatedBackground 2s infinite linear;
    animation: animatedBackground 2s infinite linear;
}

@-moz-keyframes animatedBackground {
    0% {
        background-position: 90% center;
    }
    100% {
        background-position: 100% center;
    }
}
@-webkit-keyframes animatedBackground {
    0% {
        background-position: 90% center;
    }
    100% {
        background-position: 100% center;
    }
}
@-o-keyframes animatedBackground {
    0% {
        background-position: 90% center;
    }
    100% {
        background-position: 100% center;
    }
}
@-ms-keyframes animatedBackground {
    0% {
        background-position: 90% center;
    }
    100% {
        background-position: 100% center;
    }
}
@keyframes animatedBackground {
    0% {
        background-position: 90% center;
    }
    100% {
        background-position: 100% center;
    }
}

CSS3动画 - 无限悬停箭头

2 个答案:

演示：jsFiddle

演示：jsFiddle