在 CSS 中移动渐变条答案

【问题标题】：Moving Gradient Bar in CSS在 CSS 中移动渐变条
【发布时间】：2014-08-29 05:56:10
【问题描述】：

我想要一个彩色条，另一种颜色在此条中移动。它应该看起来像这样，白色部分在移动：

我在想一些 CSS 3 的渐变和动画属性。我不想想使用 JS！我试过这样的事情：

HTML：

<body>
    <div class="navbar_line"></div>
</body>

CSS：

.navbar_line {
animation: gradient 5s linear infinite; 
}
@-webkit-keyframes gradient
{

0% {
background: -moz-linear-gradient(left, #FFFFFF 0%, #EEFFEE 1%, #DDFFDD 2%, #BBFFBB 4%, #AAFFAA 5%, #99FF99 6%, #88FF88 7%, #77FF77 8%, #66EF66 9%, #55DF55 10%, #44CE44 11%, #33BD33 12%, #22AC22 13%, #119B11 14%, #008A00 15%, #008A00 86%, #119B11 87%, #22AC22 88%, #33BD33 89%, #44CE44 90%, #55DF55 91%, #66EF66 92%, #77FF77 93%, #88FF88 94%, #99FF99 95%, #AAFFAA 96%, #BBFFBB 97%, #CCFFCC 98%, #DDFFDD 99%, #EEFFEE 100%); /* FF3.6+ */
background: -webkit-linear-gradient(, #FFFFFF 0%, #EEFFEE 1%, #DDFFDD 2%, #BBFFBB 4%, #AAFFAA 5%, #99FF99 6%, #88FF88 7%, #77FF77 8%, #66EF66 9%, #55DF55 10%, #44CE44 11%, #33BD33 12%, #22AC22 13%, #119B11 14%, #008A00 15%, #008A00 86%, #119B11 87%, #22AC22 88%, #33BD33 89%, #44CE44 90%, #55DF55 91%, #66EF66 92%, #77FF77 93%, #88FF88 94%, #99FF99 95%, #AAFFAA 96%, #BBFFBB 97%, #CCFFCC 98%, #DDFFDD 99%, #EEFFEE 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(left, #FFFFFF 0%, #EEFFEE 1%, #DDFFDD 2%, #BBFFBB 4%, #AAFFAA 5%, #99FF99 6%, #88FF88 7%, #77FF77 8%, #66EF66 9%, #55DF55 10%, #44CE44 11%, #33BD33 12%, #22AC22 13%, #119B11 14%, #008A00 15%, #008A00 86%, #119B11 87%, #22AC22 88%, #33BD33 89%, #44CE44 90%, #55DF55 91%, #66EF66 92%, #77FF77 93%, #88FF88 94%, #99FF99 95%, #AAFFAA 96%, #BBFFBB 97%, #CCFFCC 98%, #DDFFDD 99%, #EEFFEE 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(left, #FFFFFF 0%, #EEFFEE 1%, #DDFFDD 2%, #BBFFBB 4%, #AAFFAA 5%, #99FF99 6%, #88FF88 7%, #77FF77 8%, #66EF66 9%, #55DF55 10%, #44CE44 11%, #33BD33 12%, #22AC22 13%, #119B11 14%, #008A00 15%, #008A00 86%, #119B11 87%, #22AC22 88%, #33BD33 89%, #44CE44 90%, #55DF55 91%, #66EF66 92%, #77FF77 93%, #88FF88 94%, #99FF99 95%, #AAFFAA 96%, #BBFFBB 97%, #CCFFCC 98%, #DDFFDD 99%, #EEFFEE 100%); /* IE10+ */
background: linear-gradient(to right, #FFFFFF 0%, #EEFFEE 1%, #DDFFDD 2%, #BBFFBB 4%, #AAFFAA 5%, #99FF99 6%, #88FF88 7%, #77FF77 8%, #66EF66 9%, #55DF55 10%, #44CE44 11%, #33BD33 12%, #22AC22 13%, #119B11 14%, #008A00 15%, #008A00 86%, #119B11 87%, #22AC22 88%, #33BD33 89%, #44CE44 90%, #55DF55 91%, #66EF66 92%, #77FF77 93%, #88FF88 94%, #99FF99 95%, #AAFFAA 96%, #BBFFBB 97%, #CCFFCC 98%, #DDFFDD 99%, #EEFFEE 100%); /* W3C */
}

1% {
background: -moz-linear-gradient(left, #EEFFEE 0%, #FFFFFF 1%, #EEFFEE 2%, #DDFFDD 3%, #BBFFBB 5%, #AAFFAA 6%, #99FF99 7%, #88FF88 8%, #77FF77 9%, #66EF66 10%, #55DF55 11%, #44CE44 12%, #33BD33 13%, #22AC22 14%, #119B11 15%, #008A00 16%, #008A00 87%, #119B11 88%, #22AC22 89%, #33BD33 90%, #44CE44 91%, #55DF55 92%, #66EF66 93%, #77FF77 94%, #88FF88 95%, #99FF99 96%, #AAFFAA 97%, #BBFFBB 98%, #CCFFCC 99%, #DDFFDD 100%); /* FF3.6+ */
background: -webkit-linear-gradient(, #EEFFEE 0%, #FFFFFF 1%, #EEFFEE 2%, #DDFFDD 3%, #BBFFBB 5%, #AAFFAA 6%, #99FF99 7%, #88FF88 8%, #77FF77 9%, #66EF66 10%, #55DF55 11%, #44CE44 12%, #33BD33 13%, #22AC22 14%, #119B11 15%, #008A00 16%, #008A00 87%, #119B11 88%, #22AC22 89%, #33BD33 90%, #44CE44 91%, #55DF55 92%, #66EF66 93%, #77FF77 94%, #88FF88 95%, #99FF99 96%, #AAFFAA 97%, #BBFFBB 98%, #CCFFCC 99%, #DDFFDD 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(left, #EEFFEE 0%, #FFFFFF 1%, #EEFFEE 2%, #DDFFDD 3%, #BBFFBB 5%, #AAFFAA 6%, #99FF99 7%, #88FF88 8%, #77FF77 9%, #66EF66 10%, #55DF55 11%, #44CE44 12%, #33BD33 13%, #22AC22 14%, #119B11 15%, #008A00 16%, #008A00 87%, #119B11 88%, #22AC22 89%, #33BD33 90%, #44CE44 91%, #55DF55 92%, #66EF66 93%, #77FF77 94%, #88FF88 95%, #99FF99 96%, #AAFFAA 97%, #BBFFBB 98%, #CCFFCC 99%, #DDFFDD 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(left, #EEFFEE 0%, #FFFFFF 1%, #EEFFEE 2%, #DDFFDD 3%, #BBFFBB 5%, #AAFFAA 6%, #99FF99 7%, #88FF88 8%, #77FF77 9%, #66EF66 10%, #55DF55 11%, #44CE44 12%, #33BD33 13%, #22AC22 14%, #119B11 15%, #008A00 16%, #008A00 87%, #119B11 88%, #22AC22 89%, #33BD33 90%, #44CE44 91%, #55DF55 92%, #66EF66 93%, #77FF77 94%, #88FF88 95%, #99FF99 96%, #AAFFAA 97%, #BBFFBB 98%, #CCFFCC 99%, #DDFFDD 100%); /* IE10+ */
background: linear-gradient(to right, #EEFFEE 0%, #FFFFFF 1%, #EEFFEE 2%, #DDFFDD 3%, #BBFFBB 5%, #AAFFAA 6%, #99FF99 7%, #88FF88 8%, #77FF77 9%, #66EF66 10%, #55DF55 11%, #44CE44 12%, #33BD33 13%, #22AC22 14%, #119B11 15%, #008A00 16%, #008A00 87%, #119B11 88%, #22AC22 89%, #33BD33 90%, #44CE44 91%, #55DF55 92%, #66EF66 93%, #77FF77 94%, #88FF88 95%, #99FF99 96%, #AAFFAA 97%, #BBFFBB 98%, #CCFFCC 99%, #DDFFDD 100%); /* W3C */
}

2% {
background: -moz-linear-gradient(left, #DDFFDD 0%, #EEFFEE 1%, #FFFFFF 2%, #EEFFEE 3%, #DDFFDD 4%, #BBFFBB 6%, #AAFFAA 7%, #99FF99 8%, #88FF88 9%, #77FF77 10%, #66EF66 11%, #55DF55 12%, #44CE44 13%, #33BD33 14%, #22AC22 15%, #119B11 16%, #008A00 17%, #008A00 88%, #119B11 89%, #22AC22 90%, #33BD33 91%, #44CE44 92%, #55DF55 93%, #66EF66 94%, #77FF77 95%, #88FF88 96%, #99FF99 97%, #AAFFAA 98%, #BBFFBB 99%, #CCFFCC 100%); /* FF3.6+ */
background: -webkit-linear-gradient(, #DDFFDD 0%, #EEFFEE 1%, #FFFFFF 2%, #EEFFEE 3%, #DDFFDD 4%, #BBFFBB 6%, #AAFFAA 7%, #99FF99 8%, #88FF88 9%, #77FF77 10%, #66EF66 11%, #55DF55 12%, #44CE44 13%, #33BD33 14%, #22AC22 15%, #119B11 16%, #008A00 17%, #008A00 88%, #119B11 89%, #22AC22 90%, #33BD33 91%, #44CE44 92%, #55DF55 93%, #66EF66 94%, #77FF77 95%, #88FF88 96%, #99FF99 97%, #AAFFAA 98%, #BBFFBB 99%, #CCFFCC 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(left, #DDFFDD 0%, #EEFFEE 1%, #FFFFFF 2%, #EEFFEE 3%, #DDFFDD 4%, #BBFFBB 6%, #AAFFAA 7%, #99FF99 8%, #88FF88 9%, #77FF77 10%, #66EF66 11%, #55DF55 12%, #44CE44 13%, #33BD33 14%, #22AC22 15%, #119B11 16%, #008A00 17%, #008A00 88%, #119B11 89%, #22AC22 90%, #33BD33 91%, #44CE44 92%, #55DF55 93%, #66EF66 94%, #77FF77 95%, #88FF88 96%, #99FF99 97%, #AAFFAA 98%, #BBFFBB 99%, #CCFFCC 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(left, #DDFFDD 0%, #EEFFEE 1%, #FFFFFF 2%, #EEFFEE 3%, #DDFFDD 4%, #BBFFBB 6%, #AAFFAA 7%, #99FF99 8%, #88FF88 9%, #77FF77 10%, #66EF66 11%, #55DF55 12%, #44CE44 13%, #33BD33 14%, #22AC22 15%, #119B11 16%, #008A00 17%, #008A00 88%, #119B11 89%, #22AC22 90%, #33BD33 91%, #44CE44 92%, #55DF55 93%, #66EF66 94%, #77FF77 95%, #88FF88 96%, #99FF99 97%, #AAFFAA 98%, #BBFFBB 99%, #CCFFCC 100%); /* IE10+ */
background: linear-gradient(to right, #DDFFDD 0%, #EEFFEE 1%, #FFFFFF 2%, #EEFFEE 3%, #DDFFDD 4%, #BBFFBB 6%, #AAFFAA 7%, #99FF99 8%, #88FF88 9%, #77FF77 10%, #66EF66 11%, #55DF55 12%, #44CE44 13%, #33BD33 14%, #22AC22 15%, #119B11 16%, #008A00 17%, #008A00 88%, #119B11 89%, #22AC22 90%, #33BD33 91%, #44CE44 92%, #55DF55 93%, #66EF66 94%, #77FF77 95%, #88FF88 96%, #99FF99 97%, #AAFFAA 98%, #BBFFBB 99%, #CCFFCC 100%); /* W3C */
}

待续……

信不信由你，它有效！我写了一个脚本来生成这些行。但它很大，比图片还大，因此无法使用。

希望你能找到更好的方法。

【问题讨论】：

标签： html css

【解决方案1】：

html部分很简单，你只需要两个不同的div。

HTML：

<body>
    <div class="background">
        <div class="movement"></div>
    </div>
</body>

CSS：

.movement 
{
    background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0) 0%, rgba(0,255,0,0.7) 25%, white 50%, rgba(0,255,0,0.7) 75%, rgba(255, 255, 255, 0) 100%); 
    background: -o-linear-gradient(right,  rgba(255, 255, 255, 0) 0%, rgba(0,255,0,0.7) 25%, white 50%, rgba(0,255,0,0.7) 75%, rgba(255, 255, 255, 0) 100%); 
    background: -moz-linear-gradient(right, rgba(255, 255, 255, 0) 0%, rgba(0,255,0,0.7) 25%, white 50%, rgba(0,255,0,0.7) 75%, rgba(255, 255, 255, 0) 100%);
    background: linear-gradient(to right, rgba(255, 255, 255, 0) 0%, rgba(0,255,0,0.7) 25%, white 50%, rgba(0,255,0,0.7) 75%, rgba(255, 255, 255, 0) 100%); 
    width: 400px; 
    height: 5px; 
    position: relative;
    -webkit-animation: gradient 6s linear infinite;
    animation: gradient 6s linear infinite;
}
.background 
{
    width: 1000px;
    overflow: hidden;
    height: 5px;
    background-color: #070;
}
@-webkit-keyframes gradient
{
    0%   {left: -400px;}
    100% {left: 1000px;}
}
@keyframes gradient 
{
    0%   {left: -400px;}
    100% {left: 1000px;}
}

背景 div 明明就是背景，大小，颜色而已。

第二个 div 是带有第二种颜色的渐变 div。它是用渐变着色的。动画使 div 在背景上移动。

就是这样！在这里试试：http://jsfiddle.net/fgeLnbkm/2/

如果你想自定义它，它安静得心应手，大部分东西都很容易改变，除了运动div的渐变。

【讨论】：

这太棒了。干得好！
更好：使用伪元素避免divitis jsfiddle.net/teddyrised/fgeLnbkm/3

【解决方案2】：

您可以使用径向渐变代替线性渐变，在这种情况下，您只需要 5 个色标，但不需要一百个。
您只需要三个关键帧，而不是一百个关键帧：0% 50% 和 100%（甚至只需 2 个）。所有中间值都将被插值。

【讨论】：