CSS Timeline Generator

Visually build customizable responsive CSS timelines, product roadmaps, and changelogs with zero JavaScript dependencies.

Layout:

Milestone Items (4)

Step #1

Milestone Title

Date / Quarter

Description

Icon Emoji

Step #2

Milestone Title

Date / Quarter

Description

Icon Emoji

Step #3

Milestone Title

Date / Quarter

Description

Icon Emoji

Step #4

Milestone Title

Date / Quarter

Description

Icon Emoji

Styling & Connector Customization

Line Color

Line Width (2px)

Dot Size (18px)

Live Previewcenter

🔍Q1 2024

Phase 1: Discovery & Research

Initial user research, stakeholder interviews, and defining technical constraints.

⚡Q2 2024

Phase 2: Architecture & Prototype

Building the high-fidelity UI design system and core backend microservices.

🚀Q3 2024

Phase 3: Beta Launch & Testing

Rolling out beta invites to early adopters and stress testing server loads.

🌍Q4 2024

Phase 4: Global Enterprise Release

Public GA release with full multi-region redundancy and enterprise SLA.

.timeline {
  position: relative;
  padding: 20px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  top: 0;
  bottom: 0;
  background: #f5c842;
}

.timeline-item {
  position: relative;
  margin-bottom: 32px;
  display: flex;
  padding-right: calc(50% + 30px); justify-content: flex-end;
}

.timeline-item:nth-child(even) {
  justify-content: flex-start;
  padding-right: 0;
  padding-left: calc(50% + 30px);
}

.timeline-item:nth-child(even) .timeline-dot {
  left: 50%;
}

.timeline-dot {
  position: absolute;
  left: 50%;
  top: 20px;
  transform: translate(-50%, -50%);
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #0a0a0f;
  border: 3px solid #f5c842;
  z-index: 2;
  box-shadow: 0 0 12px #f5c84280;
}

.timeline-card {
  background: #1f1f25;
  border-radius: 14px;
  padding: 16px;
  max-width: 440px;
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.timeline-card:hover {
  border-color: #f5c842;
  transform: translateY(-2px);
}

@media (max-width: 768px) {
  .timeline::before { left: 20px; }
  .timeline-item { padding-left: 48px !important; padding-right: 0 !important; justify-content: flex-start !important; }
  .timeline-dot { left: 20px !important; }
}

Mastering CSS Timelines, Roadmaps & Process Trees

CSS Timeline Architecture & Mobile Responsiveness

Timelines are a core design pattern for project roadmaps, company histories, changelogs, and user onboarding steps. By utilizing CSS pseudo-elements (::before for the connecting trunk and ::after for the node pulse), you maintain clean semantic HTML without extra decorative DOM wrappers.

Layout Mode	Desktop Behavior	Mobile Behavior	Best Used For
Vertical Center	Alternating Left/Right cards along center spine	Collapses to single left-aligned column	Product roadmaps & company milestones
Vertical Left	Single column with line on left edge	Identical left-aligned layout	Activity logs & release changelogs
Horizontal	Flex row with connecting progress track	Horizontal scroll container	Multi-step checkout & onboarding wizards

Pairing Timelines with Other CSS Studio Tools

Add interactive micro-interactions to your timeline nodes with our CSS keyframe generator, style node badges in our CSS badge generator, or add rich tooltips with our CSS tooltip generator.