On an element with a background (image or solid color don\'t really matter):
I am trying
References to SVG clip paths are to the clip path definitions themselves and the dimensions or other attributes of the are meaningless in this context.
What is happening in your example is that you are applying a 4000 px wide clip path to your header. Which is probably only of the order of 900 px wide. So the curvature isn't visible.
If you want a responsive clip path, you should define it using clipPathUnits="objectBoundingBox"
.
#block-header {
background: Red;
min-height: 100px;
-webkit-clip-path: url(#myClip);
clip-path: url(#myClip);
}
SVG image
clip-path
using the same SVG
Fiddle here