将CSS嵌入到SVG中以创建脉动的圆圈

Question

有没有办法将这个Codepen CSS嵌入到SVG中，以创建一个独立的SVG文件(即图标(？基本上将整个Codepen代码转换为一个单独的.svg文件

这是指向Codepen 的链接

<div class="pulse-container">
<div class="pulse-box">
<svg class="pulse-svg" width="50px" height="50px" viewBox="0 0 50 50" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<circle class="circle first-circle" fill="#FF6347" cx="25" cy="25" r="25"></circle>
<circle class="circle second-circle" fill="#FF6347" cx="25" cy="25" r="25"></circle>
<circle class="circle third-circle" fill="#FF6347" cx="25" cy="25" r="25"></circle>
<circle class="circle" fill="#FF6347" cx="25" cy="25" r="25"> </circle>
</svg>
</div>
</div>

Answer 1

根据文档，可以在<svg>中使用<style>元素。

另一方面，请注意，您的Codepen位于SCSS中，而不是CSS。

下面是一个例子，我快速地将您的代码转换为CSS:

<div class="pulse-container">
<div class="pulse-box">
<svg class="pulse-svg" width="50px" height="50px" viewBox="0 0 50 50" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">

<style>
/* <![CDATA[ */
.pulse-box {
float: left;
width: 50%;
height: 250px;
display: flex;
justify-content: center;
align-items: center;
}
/* pulse in SVG */
svg.pulse-svg {
overflow: visible;
}
svg.pulse-svg .first-circle {
fill: #f00;
transform: scale(0.5);
transform-origin: center center;
animation: pulse-me 3s linear infinite;
}
svg.pulse-svg .second-circle {
fill: #f00;
transform: scale(0.5);
transform-origin: center center;
animation: pulse-me 3s linear infinite;
animation-delay: 1s;
}
svg.pulse-svg .third-circle {
fill: #f00;
transform: scale(0.5);
transform-origin: center center;
animation: pulse-me 3s linear infinite;
animation-delay: 2s;
}
/* pulse in CSS */
.pulse-css {
width: 30px;
height:  30px;
border-radius:  15px;
background: tomato;
position: relative;
}
.pulse-css:before,
.pulse-css:after {
content: "";
width: 30px;
height:  30px;
border-radius:  15px;
background-color: tomato;
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
margin: auto;
transform: scale(0.5);
transform-origin: center center;
animation: pulse-me 3s linear infinite;
}
.pulse-css:after {
animation-delay: 2s;
}
@keyframes pulse-me {
0% {
transform: scale(0.5);
opacity: 0;
}
50% {
opacity: 0.1;
}
70% {
opacity: 0.09;
}
100% {
transform: scale(5);
opacity: 0;
}
}
/* ]]> */
</style>

<circle class="circle first-circle" fill="#FF6347" cx="25" cy="25" r="25"></circle>
<circle class="circle second-circle" fill="#FF6347" cx="25" cy="25" r="25"></circle>
<circle class="circle third-circle" fill="#FF6347" cx="25" cy="25" r="25"></circle>
<circle class="circle" fill="#FF6347" cx="25" cy="25" r="25"></circle>
</svg>
</div>
</div>