Backgrounds — 860 CSS effects

Full-frame gradients, patterns, atmospheres, and animated scenes.

Pure CSS with no dependencies or build step. Open any effect for a live preview, source code, and browser editing.

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Annular Solar Eclipse

An annular eclipse shows a bright ring of fire around the moon.

#animation #gradient #transform

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Electric Guitar Shred

Lightning-like energy bolts surround a shredding electric guitar.

#animation #gradient #transform

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Energy Wave

A sine-wave of energy flows horizontally across the field.

#animation #gradient #transform

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Fairy Dust Shimmer

Magical fairy dust particles twinkle and drift in soft pastel light.

#animation #gradient #transform

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Fireworks Burst

Colorful fireworks burst and fade over a starry night sky.

#gradient #animation #3d

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Fireworks Finale

A grand finale of fireworks bursts across the night sky.

#animation #gradient #transform

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Fluid Pour

Colorful fluid pours down in a steady thick stream.

#animation #gradient #transform

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Foggy Forest

Thick fog drifts among the trunks of a misty forest.

#animation #gradient #transform

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Fractal Tree

Self-similar fractal tree with branching limbs growing recursively.

#animation #gradient #transform

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Grid Scan

A perspective wireframe grid with a bright scan line sweeping down over it.

#animation #gradient #filter

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Hyperspace Jump

Hyperspace jump with starlines streaking past the viewer.

#animation #gradient #transform

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Landing Pad Lights

A circular helipad perimeter lights up in yellow sequence.

#animation #gradient #transform

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Lightning Storm

Bolts of lightning flash across a dark stormy sky with a soft glow.

#gradient #animation #glow

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Lissajous Curve

Lissajous curve figure traced by harmonic oscillation.

#animation #gradient #transform

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Marble Swirl

Elegant marble veins swirl in classic white and grey stone.

#animation #gradient #transform

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Masked Halftone

A dot matrix is masked with a gradient so the pattern fades out toward one corner.

#animation #gradient #mask

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Monsoon Rainforest

Tropical rainforest leaves drip under a warm monsoon downpour.

#animation #gradient #transform

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Monstera Leaf

Tropical monstera leaves with signature splits overlay a jungle backdrop.

#animation #gradient #transform

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Morning Glory

Vivid blue morning glory vines spiral upward opening to the sun.

#animation #gradient #transform

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Music Sheet Notes

Musical notation scrolls horizontally across aged sheet music.

#animation #gradient #transform

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Oil Slick

An oil slick shimmers with shifting rainbow interference colors.

#animation #gradient #transform

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Oil on Water

Oil slick spreads on water with shifting iridescent colors.

#animation #gradient #transform

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Paint Mixing

Thick layers of paint fold and mix together in slow motion.

#animation #gradient #transform

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Paint Splash

Vivid paint splashes burst and drip across a white canvas.

#animation #gradient #transform

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Paper Fibers

Cross-hatched repeating gradients build a warm paper grain with no image file.

#gradient #shadow #texture

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Plasma Field

Saturated overlapping blobs swirl and blend into a flowing plasma surface.

#animation #border #transform

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Plasma Arc

An electric plasma arc crackles between two points.

#animation #gradient #transform

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Plasma Torch

A bright blue plasma jet emits a thin column of superheated gas.

#animation #gradient #transform

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Orange Portal

Orange exit portal swirling with hot energy field.

#animation #gradient #transform

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Quasar Jet

A supermassive quasar fires a blazing relativistic jet into space.

#animation #gradient #transform

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Rave LED Pulse

Colorful LED panels pulse and strobe to the music beat.

#animation #gradient #shadow

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Retro Sunset

A striped retro sun sets behind an animated horizon line in classic 80s style.

#gradient #animation #3d

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Running Track Curve

A red running track with painted lane stripes curving to the finish.

#animation #gradient

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Sand Blast

Fine sand streams horizontally in a desert wind blast.

#animation #gradient

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CRT Scanlines

Retro CRT scanlines roll down an old monitor screen.

#animation #gradient

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Ski Slope Tracks

Curved ski tracks carve through fresh powder on a mountain slope.

#animation #gradient #transform

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City Smog

Yellow-brown city smog hangs heavy over an urban skyline.

#animation #gradient #transform

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Drifting Smoke

Dark smoky layers drift and curl across an ominous backdrop.

#gradient #animation #border

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Snow Drift

Snowflakes drift and accumulate into soft curves on the ground.

#animation #gradient #transform

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Gentle Snowfall

Soft white snowflakes drift down across a winter night sky.

#gradient #animation #border

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Spacetime Warp

Spacetime itself warps and ripples around an invisible mass.

#animation #gradient #transform

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Static Noise

TV static noise grain at full intensity.

#animation #gradient

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Steampunk Brass Gears

Brass steampunk gears meshing in continuous rotation.

#animation #gradient #transform

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Quantum Superposition

Waveform superposition blending two states simultaneously.

#animation #gradient #filter

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Synthwave Sun

Synthwave retro sun with horizontal cut lines over grid.

#animation #gradient #transform

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Terrazzo

Colorful terrazzo chips embedded in pale concrete.

#animation #gradient

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Toile de Jouy

Classic toile de Jouy pastoral scenes repeat in muted blue on cream.

#animation #gradient

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Toile de Jouy

French provincial toile with monochrome pastoral scenes.

#animation #gradient

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Traffic Lights

Traffic lights cycle through red yellow and green.

#animation #gradient #transform

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Triangle Wave

Triangle wave folding symmetric peaks across the panel.

#animation #gradient #shadow

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Trophy Shine

A golden trophy spins with a sparkle highlight.

#animation #gradient #transform

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Tunnel Vortex

Concentric tunnel rings pulling viewer into infinity.

#animation #gradient

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Twilight Blue

Deep twilight blue deepens toward night with early star pricks.

#animation #gradient

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Vernal Equinox

Balanced light and dark halves mark the spring equinox boundary.

#animation #gradient #transform

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Violin String Vibration

Bowed violin strings vibrate with a warm amber resonance.

#animation #gradient #transform

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Wetland Marsh

Calm marsh water reflects reeds and a soft overcast sky.

#animation #gradient #transform

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White Dwarf

A dense white dwarf star glows intensely in the dark of space.

#animation #gradient #transform

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Calm Wind

A barely perceptible breeze stirs a pale pastel sky.

#animation #gradient

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Cyclone

A rotating cyclone spiral of clouds spins over tropical waters.

#animation #gradient #transform

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Winter Glow

A soft warm winter glow lights snow against a cool sky.

#animation #gradient

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Winter Solstice

The longest night of the winter solstice under a starry sky.

#animation #gradient

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Moroccan Zellige

Vivid Moroccan zellige mosaic tiles in star pattern.

#animation #gradient #transform

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Aboriginal Dot Art

Aboriginal Australian dot painting with earth-toned points.

#animation #gradient

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Adinkra Symbols

Akan Adinkra symbols floating on rustic earthen ground.

#animation #gradient #filter

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Golden Afternoon

Warm golden afternoon light bathes everything in honey tones.

#animation #gradient #transform

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Afternoon Haze

Warm hazy afternoon light softens a distant golden horizon.

#animation #gradient #transform

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Lazy Afternoon

A hazy lazy afternoon stretches under soft warm light.

#animation #gradient #transform

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Airport Runway Lights

Rows of runway approach lights descend toward a landing plane.

#animation #gradient #transform

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Alcohol Ink

Vibrant alcohol ink blooms and spreads in organic cell patterns.

#animation #gradient #transform

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Alpine Meadow

A high alpine meadow blooms with tiny flowers below snowy peaks.

#animation #gradient

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Ambulance Flash

White ambulance strobe with red cross pulse.

#animation #gradient #transform

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Amethyst Crystal

Purple amethyst crystals sparkle with internal light.

#animation #gradient #shadow

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Anglerfish Glow

A deep-sea anglerfish lure pulses in the abyssal dark.

#animation #gradient #transform

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Animated Stripes

Diagonal candy stripes that scroll continuously for a barber-pole look.

#gradient #animation #shadow

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Anodized Titanium

Anodized titanium shifting through rainbow oxide layers.

#animation #gradient

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Arabesque Pattern

Intricate arabesque interlacing geometry in gold on deep blue.

#animation #gradient

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Archery Bullseye

A multi-color archery target with an arrow hitting the bullseye.

#animation #gradient #transform

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Art Nouveau Curves

Sinuous Art Nouveau whiplash curves with peacock hues.

#animation #gradient #transform

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Asanoha Hemp Leaf

Japanese asanoha hemp-leaf geometric star pattern.

#animation #gradient #transform

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Kuiper Belt

Icy bodies of the distant Kuiper Belt drift at the solar edge.

#animation #gradient

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Main Asteroid Belt

Drifting rocks of the main asteroid belt orbit between Mars and Jupiter.

#animation #gradient

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Astronomical Dusk

Deep astronomical dusk fades to near-black with emerging stars.

#animation #gradient

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Green Aurora Borealis

Vibrant green curtains of northern lights ripple across the polar sky.

#animation #gradient #transform

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Violet Aurora

Purple and pink aurora ribbons dance over a starry sky.

#animation #gradient #transform

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Aurora Waves

Soft shifting aurora ribbons ripple across a starlit polar sky.

#gradient #animation #border

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Early Autumn

Early autumn turns a few leaves golden against a clear sky.

#animation #gradient

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Autumn Forest

A forest blazes with red, orange, and yellow autumn foliage.

#animation #gradient #transform

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Autumn Leaves

Warm-colored leaves tumble and spin downward through the air.

#gradient #animation #shadow

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Autumn Mist

Cool autumn mist drifts among orange and yellow trees.

#animation #gradient #transform

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Autumn Nut

Brown autumn nuts scatter among fallen leaves on the ground.

#animation #gradient #transform

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Autumn Twilight

Orange and purple twilight bleeds over autumn treetops.

#animation #gradient #transform

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Autumn Wind Gust

Gusty winds sweep golden leaves sideways across an autumn scene.

#animation #gradient #transform

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Portuguese Azulejo

Blue and white Portuguese azulejo tile pattern.

#animation #gradient

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Badminton Shuttlecock

A white shuttlecock with feathered skirt flies across a court.

#animation #gradient #transform

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Bagel Sesame

A golden bagel with sesame seeds scattered on top.

#animation #gradient #transform

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Floating Balloons

Festive balloons drift gently upward on a soft gradient sky.

#gradient #animation #border