I would like to create a web page where the background is flat black but I need to add also a background pattern that should be visible only inside some shapes (circles in this simple example, but they will be a complicated path, different for each section).
I know I could assign the pattern to the shapes, but I need also to animate the shapes and is not possible to animate the pattern.
Here my starting code
I applied a texture in CSS to the entire page and I add some circles. Now I need to "hide" the texture everywhere except inside the shapes. And the page background should be black. How can I do that?
CodePudding user response:
Is this the sort of thing you are after?
/* hide the SVG */
svg#pattern {
position: absolute;
left: -9999px;
}
body {
background-color: black;
height: 2000px;
color: white;
}
section {
height: 400px;
}
circle {
animation: throb 1s infinite;
}
@keyframes throb {
0% { r: 48px; }
50% { r: 30px; }
100% { r: 48px; }
}
<svg id="pattern">
<defs>
<pattern id="check" width="10" height="10" patternUnits="userSpaceOnUse">
<rect width="10" height="10" fill="linen"/>
<rect width="5" height="5" fill="black"/>
<rect x="5" y="5" width="5" height="5" fill="black"/>
</pattern>
</defs>
</svg>
<div>
<h1>Test page</h1>
<section>
<svg width="400" height="100">
<circle cx="50" cy="50" r="48" fill="url(#check)"/>
</svg>
</section>
<section>
<svg width="400" height="100">
<circle cx="50" cy="50" r="48" fill="url(#check)"/>
</svg>
</section>
<section>
<svg width="400" height="100">
<circle cx="50" cy="50" r="48" fill="url(#check)"/>
</svg>
</section>
</div>
<iframe name="sif1" sandbox="allow-forms allow-modals allow-scripts" frameborder="0"></iframe>
CodePudding user response:
body {
background-color: black;
}
.container {
opacity: 0.8;
background-image: linear-gradient(135deg, black 25%, transparent 25%), linear-gradient(225deg, black 25%, transparent 25%), linear-gradient(45deg, black 25%, transparent 25%), linear-gradient(315deg, black 25%, #e5e5f7 25%);
background-position: 10px 0, 10px 0, 0 0, 0 0;
background-size: 10px 10px;
background-repeat: repeat;
width:200px;
height:200px;
}
<div class="container" style='clip-path: url("#test");'></div>
<svg x="0" y="0" width="0" height="0">
<clipPath id="test">
<circle cx="100" cy="100" r="20" fill="red"></circle>
</clipPath>
</svg>
<iframe name="sif2" sandbox="allow-forms allow-modals allow-scripts" frameborder="0"></iframe>