Flipbook Codepen //top\\ May 2026

If you want to understand the code behind the flip without a library, check out this Simple Flipbook . It uses a straightforward "z-index" swap logic:

Reviewers and developers often categorize these projects based on the technology used: flipbook codepen

Most pens utilize a strict naming convention: If you want to understand the code behind

function drawStars(ctx, w, h) for(let i=0;i<12;i++) ctx.fillStyle=`hsl($40+i*20, 80%, 65%)`; ctx.beginPath(); ctx.arc(w*(0.2+Math.sin(i)*0.1), h*(0.5+Math.cos(i*2)*0.2), w*0.02,0,Math.PI*2); ctx.fill(); function drawRainbow(ctx,w,h) for(let i=0;i<6;i++) ctx.fillStyle=`hsl($30+i*15, 80%, 65%)`; ctx.fillRect(w*0.2, h*0.55 + i*12, w*0.6, 8); function drawClouds(ctx,w,h) ctx.fillStyle='#F0F8FF'; ctx.beginPath(); ctx.ellipse(w*0.3,h*0.7,w*0.12,w*0.08,0,0,Math.PI*2); ctx.fill(); ctx.beginPath(); ctx.ellipse(w*0.45,h*0.68,w*0.1,w*0.07,0,0,Math.PI*2); ctx.fill(); ctx.beginPath(); ctx.ellipse(w*0.6,h*0.72,w*0.13,w*0.09,0,0,Math.PI*2); ctx.fill(); function drawGalaxy(ctx,w,h) for(let s=0;s<60;s++) ctx.fillStyle=`rgba(180,130,255,$Math.random()*0.6)`; ctx.fillRect(w*0.65+Math.random()*80, h*0.4+Math.random()*80, 2,2); ctx.fillStyle='#c7aaff'; ctx.beginPath(); ctx.ellipse(w*0.75,h*0.65,w*0.08,w*0.04,0,0,Math.PI*2); ctx.fill(); function drawTeaParty(ctx,w,h) ctx.fillStyle='#d9b48b'; ctx.fillRect(w*0.55,h*0.6,w*0.12,w*0.1); ctx.fillStyle='#f3e3c2'; ctx.beginPath(); ctx.ellipse(w*0.61,h*0.58,w*0.07,w*0.04,0,0,Math.PI*2); ctx.fill(); ctx.fillStyle='#a57c54'; ctx.fillRect(w*0.6,h*0.7,3,12); function drawMoonCrater(ctx,w,h) ctx.fillStyle='#cbc1a4'; ctx.beginPath(); ctx.arc(w*0.7, h*0.6, w*0.1,0,Math.PI*2); ctx.fill(); ctx.fillStyle='#a59173'; ctx.beginPath(); ctx.ellipse(w*0.72, h*0.58, w*0.03, w*0.02,0,0,Math.PI*2); ctx.fill(); function drawConstellation(ctx,w,h) ctx.beginPath(); for(let i=0;i<5;i++) let x = w*(0.6+Math.sin(i)*0.08); let y = h*(0.5+Math.cos(i*2)*0.08); ctx.fillStyle='#ffd966'; ctx.arc(x,y,4,0,Math.PI*2); ctx.fill(); ctx.fillStyle='gold'; ctx.fill(); if(i>0) ctx.fillRect(x-2,y-2,4,4); function drawShootingStar(ctx,w,h) ctx.fillStyle='#FFE484'; ctx.beginPath(); ctx.moveTo(w*0.8,h*0.3); ctx.lineTo(w*0.83,h*0.25); ctx.lineTo(w*0.75,h*0.28); ctx.fill(); ctx.fillStyle='white'; for(let i=0;i<8;i++) ctx.fillRect(w*0.7+Math.random()*40, h*0.25+Math.random()*30, 2,2); function drawNebula(ctx,w,h) ctx.globalAlpha=0.5; for(let i=0;i<40;i++) ctx.fillStyle=`hsl($280+Math.random()*40, 80%, 70%)`; ctx.beginPath(); ctx.arc(w*(0.65+Math.random()*0.3), h*(0.5+Math.random()*0.3), Math.random()*8,0,Math.PI*2); ctx.fill(); ctx.globalAlpha=1; function drawHomecoming(ctx,w,h) ctx.fillStyle='#78b57e'; ctx.fillRect(w*0.2,h*0.7,w*0.6,15); ctx.fillStyle='#6c9e6e'; ctx.beginPath(); ctx.rect(w*0.35,h*0.5,w*0.1,w*0.2); ctx.fill(); ctx.fillStyle='#b57c48'; ctx.beginPath(); ctx.moveTo(w*0.32,h*0.5); ctx.lineTo(w*0.4,h*0.42); ctx.lineTo(w*0.48,h*0.5); ctx.fill(); Stacking Order (

: Absolute-positioned divs stacked on top of each other. Each page is divided into a "front" and "back" face. Stacking Order (