如何在用作base-64背景图像数据时更改svg填充颜色？

Base64用于:

url('data:image/svg+xml;base64,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');

使用像http://www.base64encode.org/这样的工具

这不会直接回答您的问题,但确实让我们执行以下操作.我们现在可以测试是否:

.icon:hover .style0 {
    fill: red;
}

会工作,或使用

.icon {
    background-image: url('data:image/svg+xml;base64,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');
    height: 40px;
    width: 40px;
}

.icon:hover {
    background-image: url('data:image/svg+xml;base64,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');
}

这对我来说似乎效率低下,因为当我们想要改变的是颜色时,我们被迫为悬停复制了大量相同的信息.

工作实例

使用CSS的filter属性.对我来说,我想在Hover上将图标的颜色更改为白色:

filter: grayscale(1) brightness(2);

或者如果你想动态尝试:

var green = '3CB54A';
var red = 'ED1F24';
var svg = '<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"    viewBox="0 0 320 100" enable-background="new 0 0 320 100" xml:space="preserve"> <polygon class="mystar" fill="#'+green+'" points="134.973,14.204 143.295,31.066 161.903,33.77 148.438,46.896 151.617,65.43 134.973,56.679 118.329,65.43 121.507,46.896 108.042,33.77 126.65,31.066 "/><circle class="mycircle" fill="#'+red+'" cx="202.028" cy="58.342" r="12.26"/></svg>';      
var encoded = window.btoa(svg);
document.body.style.background = "url(data:image/svg+xml;base64,"+encoded+")";

在这里小提琴