问题
Recently I began experimenting with CSS Animations over an SVG definition created by someone else and I found something I could n't solve by myself. And given my little about SVG, it was hard to Google a solution.
Here's what I've got:
@charset "utf-8";
body, html{
height: 100%;
}
main {
flex: 1 1 auto;
}
.box {
max-height: 600px;
max-width: 600px;
padding: 10px;
}
svg {
height: 100%;
width: 100%;
}
svg path {
fill: #0f68e0;
}
.left {
transform-origin: 190px 555px;
/*animation: spin-reverse 4000ms linear infinite;
animation-delay: 0.8s;*/
}
.right {
transform-origin: 605px 555px;
/*animation: spin-reverse 4000ms linear infinite;
animation-delay: 0.8s;*/
}
@keyframes spin {
100% {
-moz-transform: rotate(360deg);
-webkit-transform: rotate(360deg);
transform: rotate(360deg);
}
}
@keyframes spin-reverse {
100% {
-moz-transform: rotate(-360deg);
-webkit-transform: rotate(-360deg);
transform: rotate(-360deg);
}
}<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.1/css/bootstrap.css" rel="stylesheet"/>
<wrapper class="d-flex flex-column h-100">
<main class="container-fluid d-flex align-items-center justify-content-center">
<div class="row">
<div class="col-md-12">
<div class="logo">
<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 0 796.209 765.469" enable-background="new 0 0 796.209 765.469" xml:space="preserve">
<g>
<circle id="left" cx="190" cy="555" r="225" fill="transparent" />
<g class="left">
<path fill-rule="evenodd" clip-rule="evenodd" d="M0,485.11c1.139-5.168,2.036-10.402,3.458-15.492
c6.393-22.867,20.793-39.549,40.947-51.354c34.3-20.092,68.711-39.997,103.208-59.748c31.154-17.838,62.052-16.47,92.784,1.582
c32.845,19.292,65.925,38.18,98.85,57.336c30.349,17.658,45.821,44.029,45.862,79.242c0.045,39.324,0.059,78.648-0.007,117.973
c-0.058,34.592-15.114,60.828-44.834,78.314c-34.405,20.244-68.957,40.246-103.655,59.984c-28.94,16.463-58.437,16.797-87.462,0.377
c-35.178-19.898-70.117-40.229-104.953-60.723c-24.501-14.416-39.667-35.475-43.343-64.141c-0.102-0.797-0.561-1.547-0.854-2.318
C0,579.131,0,532.122,0,485.11z M70.932,555.338c0,22.164,0.074,44.326-0.081,66.488c-0.023,3.285,1.021,4.994,3.865,6.617
c38.42,21.941,76.777,43.994,115.087,66.127c2.745,1.584,4.771,1.902,7.687,0.215c38.438-22.244,76.941-44.373,115.497-66.414
c2.797-1.598,3.944-3.25,3.935-6.578c-0.124-44.158-0.115-88.316-0.016-132.475c0.007-3.215-0.884-5.018-3.791-6.678
c-38.713-22.1-77.351-44.33-115.946-66.633c-2.487-1.436-4.269-1.418-6.729,0.002c-38.602,22.289-77.237,44.523-115.957,66.609
c-2.979,1.699-3.626,3.627-3.611,6.732C70.982,511.346,70.931,533.342,70.932,555.338z"/>
</g>
<circle id="right" cx="605" cy="555" r="225" fill="transparent" />
<g class="right">
<path fill-rule="evenodd" clip-rule="evenodd" d="M796.181,555.313c0,19.5-0.115,39.002,0.025,58.502
c0.257,35.969-15.705,62.445-46.587,80.311c-32.976,19.076-66.024,38.029-98.902,57.271c-31.076,18.188-62.064,18.539-93.234,0.455
c-34.249-19.869-68.659-39.469-102.706-59.682c-28.814-17.105-43.453-42.863-43.624-76.43c-0.204-40-0.16-80.002-0.018-120
c0.12-33.539,14.444-59.504,43.257-76.639c35.46-21.092,71.12-41.875,107.151-61.972c30.308-16.905,60.521-14.384,90.129,3.015
c32.843,19.302,65.971,38.121,98.863,57.341c30.086,17.58,45.712,43.691,45.651,78.824
C796.153,515.977,796.181,535.645,796.181,555.313z M728.073,555.583c0-21.832-0.099-43.664,0.093-65.496
c0.034-3.813-1.063-5.908-4.44-7.838c-38.433-21.934-76.784-44.014-115.077-66.191c-2.938-1.701-5.012-1.23-7.662,0.297
c-38.331,22.109-76.691,44.166-115.103,66.137c-2.759,1.58-3.927,3.246-3.917,6.592c0.133,44.33,0.119,88.662,0.021,132.992
c-0.006,3.07,0.991,4.709,3.654,6.23c38.277,21.873,76.521,43.805,114.649,65.934c3.568,2.072,6.048,1.928,9.46-0.047
c38.011-22.002,76.078-43.906,114.229-65.664c3.254-1.855,4.196-3.883,4.171-7.447C727.994,599.249,728.073,577.417,728.073,555.583
z"/>
</g>
</g>
</svg>
</div>
</div>
</div>
</main>
</wrapper>It's static, I know, I've commented out the animation part which, in this early stage, is simply to make the <path> spin counter-clockwise.
But if you uncomment the animation lines you'll notice that, at some angles of the rotation, the vertices disappear, like if the whole SVG is behind something with some sort of background (like the tricks we usually do with overflow).
From the little I could dig up, I came to think that the problem is with the <svg> definition. In all examples I've seen, none of them was like that. I tried removing the width and height attributes as several tutorials suggested and even increasing the viewBox or add some padding (that was really a blind-shot) but nothing changed.
What could possibly be wrong?
回答1:
Increasing the viewBox solves the issue on my side:
body,
html {
height: 100%;
}
main {
flex: 1 1 auto;
}
.box {
max-height: 600px;
max-width: 600px;
padding: 10px;
}
svg {
height: 100%;
width: 100%;
}
svg path {
fill: #0f68e0;
}
.left {
transform-origin: 190px 555px;
animation: spin-reverse 4000ms linear infinite;
animation-delay: 0.8s;
}
.right {
transform-origin: 605px 555px;
animation: spin-reverse 4000ms linear infinite;
animation-delay: 0.8s;
}
@keyframes spin {
100% {
-moz-transform: rotate(360deg);
-webkit-transform: rotate(360deg);
transform: rotate(360deg);
}
}
@keyframes spin-reverse {
100% {
-moz-transform: rotate(-360deg);
-webkit-transform: rotate(-360deg);
transform: rotate(-360deg);
}
}<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.1/css/bootstrap.css" rel="stylesheet" />
<wrapper class="d-flex flex-column h-100">
<main class="container-fluid d-flex align-items-center justify-content-center">
<div class="row">
<div class="col-md-12">
<div class="logo">
<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="-20 0 841.209 765.469" enable-background="new -20 0 840.209 765.469" xml:space="preserve">
<g>
<circle id="left" cx="190" cy="555" r="225" fill="transparent" />
<g class="left">
<path fill-rule="evenodd" clip-rule="evenodd" d="M0,485.11c1.139-5.168,2.036-10.402,3.458-15.492
c6.393-22.867,20.793-39.549,40.947-51.354c34.3-20.092,68.711-39.997,103.208-59.748c31.154-17.838,62.052-16.47,92.784,1.582
c32.845,19.292,65.925,38.18,98.85,57.336c30.349,17.658,45.821,44.029,45.862,79.242c0.045,39.324,0.059,78.648-0.007,117.973
c-0.058,34.592-15.114,60.828-44.834,78.314c-34.405,20.244-68.957,40.246-103.655,59.984c-28.94,16.463-58.437,16.797-87.462,0.377
c-35.178-19.898-70.117-40.229-104.953-60.723c-24.501-14.416-39.667-35.475-43.343-64.141c-0.102-0.797-0.561-1.547-0.854-2.318
C0,579.131,0,532.122,0,485.11z M70.932,555.338c0,22.164,0.074,44.326-0.081,66.488c-0.023,3.285,1.021,4.994,3.865,6.617
c38.42,21.941,76.777,43.994,115.087,66.127c2.745,1.584,4.771,1.902,7.687,0.215c38.438-22.244,76.941-44.373,115.497-66.414
c2.797-1.598,3.944-3.25,3.935-6.578c-0.124-44.158-0.115-88.316-0.016-132.475c0.007-3.215-0.884-5.018-3.791-6.678
c-38.713-22.1-77.351-44.33-115.946-66.633c-2.487-1.436-4.269-1.418-6.729,0.002c-38.602,22.289-77.237,44.523-115.957,66.609
c-2.979,1.699-3.626,3.627-3.611,6.732C70.982,511.346,70.931,533.342,70.932,555.338z"/>
</g>
<circle id="right" cx="605" cy="555" r="225" fill="transparent" />
<g class="right">
<path fill-rule="evenodd" clip-rule="evenodd" d="M796.181,555.313c0,19.5-0.115,39.002,0.025,58.502
c0.257,35.969-15.705,62.445-46.587,80.311c-32.976,19.076-66.024,38.029-98.902,57.271c-31.076,18.188-62.064,18.539-93.234,0.455
c-34.249-19.869-68.659-39.469-102.706-59.682c-28.814-17.105-43.453-42.863-43.624-76.43c-0.204-40-0.16-80.002-0.018-120
c0.12-33.539,14.444-59.504,43.257-76.639c35.46-21.092,71.12-41.875,107.151-61.972c30.308-16.905,60.521-14.384,90.129,3.015
c32.843,19.302,65.971,38.121,98.863,57.341c30.086,17.58,45.712,43.691,45.651,78.824
C796.153,515.977,796.181,535.645,796.181,555.313z M728.073,555.583c0-21.832-0.099-43.664,0.093-65.496
c0.034-3.813-1.063-5.908-4.44-7.838c-38.433-21.934-76.784-44.014-115.077-66.191c-2.938-1.701-5.012-1.23-7.662,0.297
c-38.331,22.109-76.691,44.166-115.103,66.137c-2.759,1.58-3.927,3.246-3.917,6.592c0.133,44.33,0.119,88.662,0.021,132.992
c-0.006,3.07,0.991,4.709,3.654,6.23c38.277,21.873,76.521,43.805,114.649,65.934c3.568,2.072,6.048,1.928,9.46-0.047
c38.011-22.002,76.078-43.906,114.229-65.664c3.254-1.855,4.196-3.883,4.171-7.447C727.994,599.249,728.073,577.417,728.073,555.583
z"/>
</g>
</g>
</svg>
</div>
</div>
</div>
</main>
</wrapper>来源：https://stackoverflow.com/questions/51152936/svg-with-odd-definitions-and-css-animation