A CSS-only Ribbon

April 24, 2023

Create a cool CSS Ribbon with a little code

One element (no pseudo-element)
One color definition
No fixed width/height (It fits the content size)
Optimized with CSS variables

A CSS-only Ribbon

.ribbon {
  --s: 70px; /* the ribbon size */
  --d: 20px; /* the depth */
  --c: 20px; /* the cutout part */
  
  padding: 0 calc(var(--s) + var(--d)) var(--d);
  background:
    conic-gradient(at left  var(--s) bottom var(--d),
     #0000 25%,#0008 0 37.5%,#0004 0) 0   /50% no-repeat,
    conic-gradient(at right var(--s) bottom var(--d),
     #0004 62.5%,#0008 0 75%,#0000 0) 100%/50% no-repeat;
  clip-path: polygon(0 var(--d), var(--s) var(--d),var(--s) 0,calc(100% - var(--s)) 0,calc(100% - var(--s)) var(--d),100% var(--d),calc(100% - var(--c)) calc(50% + var(--d)/2),100% 100%,calc(100% - var(--s) - var(--d)) 100%,calc(100% - var(--s) - var(--d)) calc(100% - var(--d)),calc(var(--s) + var(--d)) calc(100% - var(--d)),calc(var(--s) + var(--d)) 100%,0 100%,var(--c) calc(50% + var(--d)/2));
  background-color: #CC333F; /* the main color */
  /* width: fit-content; you may need to use this in your code if the element is full width */
}

See the Pen A CSS-only Ribbon by Temani Afif (@t_afif) on CodePen.

More Ribbon Shapes: css-generators.com/ribbon-shapes