How to Create CSS Section Dividers and Shapes
Section dividers replace flat horizontal lines with dynamic shapes — waves, angles, curves, and triangles that create visual flow between page sections. They're built with CSS clip-path, SVG backgrounds, or pseudo-elements and add polish without any images.
- Build SVG and CSS section dividers — waves, angles, curves, and triangles.
- Covers angled dividers with clip-path.
- Covers svg wave dividers.
- Covers css triangle dividers.
- Covers making dividers responsive.
Angled Dividers with clip-path
The simplest divider is an angled edge using CSS clip-path:
.section {
clip-path: polygon(0 0, 100% 0, 100% 85%, 0 100%);
padding-bottom: 60px;
}
This clips the bottom edge at an angle. The polygon() function takes coordinate pairs (x y) for each corner. Adjust the percentages to change the angle steepness. For an inverted angle on the next section, mirror the coordinates.
SVG Wave Dividers
For organic curves and wave shapes, inline SVGs placed between sections give the most control:
transform and opacity for smooth 60fps performance. These properties are handled by the GPU compositor and skip expensive layout recalculations.The SVG contains a path element with a bezier curve. Position it with position: absolute at the bottom of one section or top of the next. The SVG Wave Generator creates these paths interactively — adjust the curve, complexity, and number of waves, then export the SVG code.
CSS Triangle Dividers
CSS triangles use the border trick on a pseudo-element:
width, height, top, or left. These trigger layout recalculations on every frame and can drop performance below 60fps..section::after {
content: '';
position: absolute;
bottom: -40px;
left: 0;
width: 0;
height: 0;
border-left: 50vw solid transparent;
border-right: 50vw solid transparent;
border-top: 40px solid currentColor;
}
This creates a downward-pointing triangle centered at the bottom of the section. The triangle's color comes from the section's background.
Making Dividers Responsive
Dividers need to scale with the viewport. Use viewport units for heights and widths: border-top: 5vw solid for triangles, height: 8vw on SVG containers. Test at extreme viewport sizes — a divider that looks elegant at 1200px might be too tall at 1920px or too short at 375px. The CSS Divider Generator outputs responsive dividers that scale correctly across all viewports.
Frequently Asked Questions
How do I create a wave divider between sections?
What is CSS clip-path?
Are CSS dividers responsive?
Use the CSS Divider Generator — free, no signup required.
⚡ Open CSS Divider Generator