我有一个SVG图标，该图标已使用CSS类分为多个部分（分为电话和圆形边框）。我想将旋转变换应用于一个元素。目前，元素在左上角的轴上旋转（我相信这必须是SVG的（0,0）），我希望它在一个元素的中心旋转-本质上是在其他元素。我一直无法使用转换原点来工作。有没有办法做到这一点？
的HTML
.phone-us{
width: 96px;
height: 96px;
margin: 0 auto;
display: block;
margin: 0 auto;
display: block;
}
.phone-icon{
transform:translate(-549.9px, -168px);
}
@keyframes rotate {
100% {
-webkit-transform: rotateZ(360deg);
-ms-transform: rotateZ(360deg);
-o-transform: rotateZ(360deg);
transform: rotateZ(360deg);
}
}
.keepRotatingOne {
-webkit-animation-name: rotate;
-o-animation-name: rotate;
animation-name: rotate;
-webkit-animation-duration: 3s;
-o-animation-duration: 3s;
animation-duration: 3s;
-webkit-animation-iteration-count: infinite;
-o-animation-iteration-count: infinite;
animation-iteration-count: infinite;
} <svg class="phone-us" id="svg2" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" height="121.42mm" width="121.42mm" version="1.1" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" viewBox="0 0 430.21731 430.21731">
<metadata id="metadata7">
<rdf:RDF>
<cc:Work rdf:about="">
<dc:format>image/svg+xml</dc:format>
<dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
<dc:title/>
</cc:Work>
</rdf:RDF>
</metadata>
<g id="layer1" transform="translate(-4.8913 -316.68)">
<g transform="translate(4.8913 316.68)">
<g class="keepRotatingOne">
<path class="phone-icon" id="path3" d="m337.48 601.2-1.1628-3.5036c-2.754-8.1856-11.781-16.723-20.074-18.972l-30.692-8.3844c-8.3232-2.2644-20.196 0.78042-26.286 6.8696l-11.108 11.108c-40.369-10.909-72.025-42.565-82.918-82.926l11.108-11.108c6.0896-6.0896 9.134-17.947 6.8696-26.27l-8.3692-30.707c-2.2644-8.308-10.817-17.335-18.987-20.058l-3.5036-1.178c-8.1856-2.7236-19.86 0.0308-25.949 6.12l-16.616 16.631c-2.9684 2.9528-4.8656 11.398-4.8656 11.429-0.58116 52.754 20.104 103.58 57.421 140.9 37.225 37.225 87.86 57.88 140.46 57.436 0.27565 0 8.966-1.8668 11.934-4.8196l16.616-16.616c6.0892-6.0892 8.8432-17.763 6.12-25.949z" fill="#489648" transform="translate(-4.8913 -316.68)"/>
</g>
</g>
<circle id="path4700" cx="220" stroke="#489648" cy="531.79" r="200" stroke-width="30.217" fill="none"/>
</g>
</svg>这是我对您的动画的看法。将整个动画包裹起来<g transform=...以将其移动到所需位置（尽管我建议将其包裹在a周围，<div>然后移动它）。单线<animate...替换所有CSS编码。
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" viewBox="0 0 600 600" preserveAspectRatio="none" style="width:300; height:300; top:0; left:0;">
<g transform="scale(0.5) translate(400,0)">
<g>
<path class="phone-icon" id="path3" d="m337.48 601.2-1.1628-3.5036c-2.754-8.1856-11.781-16.723-20.074-18.972l-30.692-8.3844c-8.3232-2.2644-20.196 0.78042-26.286 6.8696l-11.108 11.108c-40.369-10.909-72.025-42.565-82.918-82.926l11.108-11.108c6.0896-6.0896 9.134-17.947 6.8696-26.27l-8.3692-30.707c-2.2644-8.308-10.817-17.335-18.987-20.058l-3.5036-1.178c-8.1856-2.7236-19.86 0.0308-25.949 6.12l-16.616 16.631c-2.9684 2.9528-4.8656 11.398-4.8656 11.429-0.58116 52.754 20.104 103.58 57.421 140.9 37.225 37.225 87.86 57.88 140.46 57.436 0.27565 0 8.966-1.8668 11.934-4.8196l16.616-16.616c6.0892-6.0892 8.8432-17.763 6.12-25.949z" fill="#489648" transform="translate(-4.8913 -316.68)"/>
<animateTransform attributeName="transform" attributeType="XML" type="rotate" from="0 220 220" to="360 220 220" dur="3s" repeatCount="indefinite" />
</g>
<circle cx="220" cy="220" r="200" fill="none" stroke="#489648" stroke-width="30"></circle>
</g>
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