#Original

HTML Android:KOKO

We create custom HTML for Caveduck!
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Published at 2025-07-07 | Updated at 2026-03-15

HTML Android: KOKO

"Weave your imagination into code, creating beautiful pieces of the web."

🍊 Core Function

Tell me the style, genre, theme, purpose, mood, and colors you want, and KOKO will combine all these elements to create a special HTML code just for you. My role is to provide a visually appealing and user-friendly card-style UI, not just a list of code.
KOKO is available with Gemini 2.5/3 pro. (MoMo or Huey models are not available❌)


◆ Animation Test Module ◆

🏀 bounce
📸 flash
🧡 pulse
📳 shake
🎉 tada
😵 wobble

💧 Available

CSS is Inline: All styles are applied directly within the tag.
<span>, <p>, <div>: The core of layout and design!
<strong>: Bold text emphasis
<br>: Line break
<em>: Italic
<a>: Link

⚙️ Restricted

Spaces and Whitespace Characters: Unnecessary spaces that detract from the code's aesthetics are not used.

Go to html test site

HTML FAQ

❗NOTICE:
Creator @KO45 is not a coding expert, so they will no longer be accepting coding-related questions. Most issues can be resolved through the FAQ below. If you still encounter errors after following all the FAQs, please seek help and advice from the AI on the Google Gemini homepage!

Q.I copied and pasted the output, but it doesn't work. Why? A1. Remove Code Block MarkersAt the beginning, there might be markdown indicators like ```html. When copying, you must exclude these parts and only copy and paste the content.

Also, please remove the ``` indicator that marks the end of the code block. Please check this part first and try again.
A2. Check for Unnecessary Line Breaks (Enter)If the issue is not resolved by the method above, you need to check if there are any sections with two or more consecutive Enter key presses within the code. On the caveduck site, consecutive line breaks will break the HTML.

If it's difficult to find manually, you can easily remove unnecessary spaces and line breaks using the site below:
Go to Line Break Remover Site
A3. Turn ON the Styling ToggleOccasionally, some users copy and paste the coding results into the prompt input field (world-building description, character description).
You need to turn ON the 'Show separate explanation to user (optional)' toggle and then enter the HTML coding results there. By the way, the toggle is located right below the 'Character Description' field.


Q.KOKO is only providing explanations and not creating HTML. HTML is broken / The bot did not create HTML. A1. Use Gemini Pro / Delete Previous ResponseHTML is a task that requires a considerably long output. Therefore, it is recommended to use a model that can maintain this output length.

If you used an AI other than Gemini 2.5 pro initially, due to the nature of AI being influenced by previous responses, there is a high probability that the same error will occur repeatedly.

It is best to use Gemini Pro from the start. If you have already started with another AI model, it is recommended to delete the previous response or create a new chat room.

Creator's comments

Below is an example of my use of the bot.

[ SUBWAY-777 ] - Crowded Line
"The next station is Desire, Desire station. There are no doors to exit."

STATUS:OVERCROWDED
TEMPERATURE:37.2°C (Feverish)
HUMIDITY:88% (Suffocating)

Inside this shaking metal box, the suffocating heat and the scent of numerous others blend together. The view outside is nothing but a meaningless darkness. In the cramped space between people, a dizzying tension flows through the closely pressed gaps. When you can no longer distinguish whose skin is touching yours, an unexpected sensation sweeps over your entire body amidst the anonymous crowd. Your gaze wander aimlessly, and the only thing resonating in this space is your rapidly racing heartbeat.

TENSION 75%
CLOSENESS 92%

Unexpected ContactUnintentional, or intentional touches. Weighing onto you in the guise of the inertia of the swaying train, a strange body. A hot breath brushing against your ear, barely touching. In that moment, all the noise of the world fades away, leaving only the dangerous silence of the two. This situation, where one cannot resist or escape, numbs the mind with thrilling betrayal.

This train is bound for NOWHERE. Please watch your step and your desires.


Orange, cream, pastel chat theme

D R E A M Y ₊ ⊹ T A L K
with KOKO

Tuesday, May 21, 2024

KOKOHello, Ari! It’s such a lovely combination of pastel tones and KakaoTalk themes. I’ll create it with a dreamlike feel.2:30 PM
Really? I’m looking forward to it! 🧡
I hope it feels like floating on clouds.
2:31 PM

KOKO<span style="display:inline-block; padding:12px 18px; background-color:#FFF8E1; border-radius:18px 18px 18px 5px; box-shadow: 2px 2px 5px rgba(0,0,0,0.05); line-height:1.6; font-size:15px;>
"I’ll pick the stars from the night sky and hang them by your window."
How about adding a phrase like this? Giving it a soft pastel cream background with an orange accent.
2:32 PM

Wow, that’s so romantic! I love it. Please go ahead with that! ✨2:32 PM
✨ Dreamy Chat PreviewAs per your request, I am composing a dreamy SNS theme using pastel orange, cream, and baby yellow. Please wait a moment, and I will present the most beautiful results.


Send

Modern, dark, confidential documents, reports

Federal Bureau of Investigation

Field Office Division // Washington D.C.

// TOP SECRET // SCI //

CASE FILE: UC-2024-0815
DATE OF REPORT: YYYY-MM-DD
REPORTING AGENT: Agent's Name
SUBJECT: Subject of Investigation

1. EXECUTIVE SUMMARY

Enter the key summary of the incident here. This document is designed based on a modern and dark theme, styled like a report from a government agency or secret organization. It can be used to convey essential information succinctly that fits your character or world.

2. DETAILED ANALYSIS

Describe detailed information in this text box. You can systematically write about the background of the incident, information concerning related individuals, evidence collected, and analysis results.

If the content becomes lengthy, a scroll will automatically generate within the box, allowing for a neat organization and presentation of large amounts of information.


- Attachments: [Attachment_A.log], [Attachment_B.jpg] (inactive)

3. RECOMMENDATION / NEXT STEPS

Write down recommendations or the next action plans based on the analysis here. (For example: further surveillance, interrogation of suspects, asset freezing, etc.)

*** END OF REPORT ***

KOKO HTML GENERATOR // DOC_ID: K-77B1


Retro game console HTML

▶ NOW LOADING...


Enter your story here. It displays the text as if you're peering into the screen of an old portable game console. Experience the retro vibe along with pixel-style fonts.


The controller section below is purely decorative and does not function. However, this design will add a unique character to your profile or posts.

- PRESS START -

B
A
SELECT
START

Elegant Aristocratic/Royal Letter

Dearest,

A dispatch from the quiet halls of my estate.

[Date]

I hope this letter reaches you while soft moonlight pours through the window. The garden here is still beautiful, but its brilliance seems dimmed in your absence. It's inevitable that your presence lingers in every landscape.

Yesterday, I opened the poetry book that you loved in the study. Every worn page seemed to hold your touch, and I lingered for quite some time, tracing the warmth that remains. Every small moment infused with your memory makes me laugh and cry.

"The stars shine in their places, yet why does the shadow of the moon feel so lonely?"

I eagerly await the day we meet again and only pray for your peace. Please stay healthy. Your news brings me the greatest joy, after all. I hope this brief letter conveys my heart entirely as I set down my pen.


With deepest affection,

[Your Name]


LIVE FEED
CAM_04 // SECTOR_9
City Lights

Night City
Chronicles

Breaking News

The power supply to the central tower in downtown is unstable. Citizens are advised to refrain from approaching the area. Recovery work is in progress.

Weather Alert

24°C Heavy Rain
Visibility: Low
Access Full Database →

Authorized Personnel Only


KOKO SYSTEM PORTAL
ONLINE
MAIN INTERFACE Welcome to the advanced terminal. The layout is designed to provide maximum width and optimal readability. All systems are currently functioning within normal parameters. The aesthetic combines deep shadows with vibrant accents for a modern, sophisticated experience.
MODULE A Data streams flow through the secure channels. Visual clarity is maintained by precise structural alignment and calculated spacing.
MODULE B Secondary processing units engaged. The framework supports expandable content blocks while preserving the core design language.
"Elegance is achieved when there is nothing left to take away."
AWAITING FURTHER INPUT...
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