How do I make buttons like openai.com?

Use the CSS on this page: the primary button is #000000 with #ffffff text, 40px corners, 36px tall. Add the hover and focus rules listed under each variant and set the button font to the one openai.com uses.

What color are the openai.com buttons?

The primary button on openai.com is #000000 with #ffffff text. The site uses 3 button variants in total; each one is listed on this page with its background, border, radius and size.

Can an AI coding agent copy the openai.com buttons?

Yes. The openai.com design pack from Stylepack holds every button variant with its states, the fonts, the colors and screenshots, so Claude Code, Cursor or Copilot can build buttons that match.

openai.com button CSS: make buttons like theirs

primary button

Try ChatGPT(opens in a n

Hover: no visible change
Focus: outline 1px none rgba(0, 0, 0, 0.486), offset 2px
Transition: color, background-color, border-color, outline-color, text-decoration-color, fill, stroke, --tw-gradient-from, --tw-gradient-via, --tw-gradient-to, opacity, box-shadow, transform, translate, scale, rotate, filter, -webkit-backdrop-filter, backdrop-filter, display, content-visibility, overlay, pointer-events, 0.2s

secondary button

Learn about ChatGPT Busi

Hover: no visible change
Transition: color, background-color, border-color, outline-color, text-decoration-color, fill, stroke, --tw-gradient-from, --tw-gradient-via, --tw-gradient-to, opacity, box-shadow, transform, translate, scale, rotate, filter, -webkit-backdrop-filter, backdrop-filter, display, content-visibility, overlay, pointer-events, 0.25s

ghost button

Products

Hover: no visible change

The CSS

One class per variant, with the measured values. The font is the one openai.com sets on its buttons.

buttons.css

1.btn-primary {
2  display: inline-flex;
3  align-items: center;
4  justify-content: center;
5  height: 36px;
6  padding: 0px 20px;
7  background: #000000;
8  color: #ffffff;
9  border: none;
10  border-radius: 40px;
11  font-size: 14px;
12  font-weight: 500;
13  font-family: "OpenAI Sans", sans-serif;
14  cursor: pointer;
15}
16
17.btn-secondary {
18  display: inline-flex;
19  align-items: center;
20  justify-content: center;
21  height: 40px;
22  padding: 0px 12px;
23  background: transparent;
24  color: #000000;
25  border: 1px solid #0000001f;
26  border-radius: 9999px;
27  font-size: 14px;
28  font-weight: 500;
29  font-family: "OpenAI Sans", sans-serif;
30  box-shadow: rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0.02) 0px 4px 6px 0px, rgba(0, 0, 0, 0.05) 0px 0px 2px 0px;
31  cursor: pointer;
32}
33
34.btn-ghost {
35  display: inline-flex;
36  align-items: center;
37  justify-content: center;
38  height: 64px;
39  padding: 0px 16px;
40  background: transparent;
41  color: #000000;
42  border: none;
43  border-radius: 0px;
44  font-size: 17px;
45  font-weight: 400;
46  font-family: "OpenAI Sans", sans-serif;
47  cursor: pointer;
48}

For AI agents

The pack is plain text, no key: fetch DESIGN.md, or hand the whole pack to Claude Code, Cursor or Copilot with the MCP server.

curl -s https://stylepack.ai/packs/openai.com/DESIGN.md

The buttons on openai.com