---
canonical: 'https://htmlcsstoimage.com/templates/playground?preset=uB24Puga'
title: 'Template Editor: Start with Open House Flyer Instagram Post (Vertical) Template'
description: 'Customize the Open House Flyer Instagram Post (Vertical) Template in the HTML/CSS to Image template editor, then save it for API image generation.'
---

# Template Editor: Start with Open House Flyer Instagram Post (Vertical) Template

Customize the Open House Flyer Instagram Post (Vertical) Template in the HTML/CSS to Image template editor, then save it for API image generation.

The HTML/CSS to Image API (HCTI) creates images, PDFs, and website screenshots from HTML/CSS, live URLs, or reusable templates. It also supports visual template editing, automated Open Graph images, signed image URLs, batch rendering, direct-to-storage output, and an OAuth-connected MCP server for AI agents.

The template playground is the browser-based visual editor for reusable image templates: configure the canvas, compose blocks, add variables, preview placeholder values, and save the result for rendering through the API.

## What you can do

- Build layouts from text, images, shapes, panels, and other reusable blocks.
- Define variables for content and styling that changes between renders.
- Preview the template with realistic values before saving it.
- Render saved templates through the HTML/CSS to Image API.

## Loaded preset

[Open House Flyer](https://htmlcsstoimage.com/templates/details/open-house-flyer/instagram-post-vertical.md)

## Template details

- **Preset:** Open House Flyer
- **Variation:** Instagram Post (Vertical)
- **Size:** Instagram Post (Vertical)
- **Categories:** Events, Real Estate
- **Types:** Announcements

## Examples

![Open House Flyer preview](<https://content-images.htmlcsstoimage.com/media-assets/e77a4b4616211d353ddc67cbf9107474f0b4e3a1d7897da39a4f9cacf748bdfb/example-image-019f2d79-918e-7e29-b4f0-c1fa241b7774.png?v=auto&iv=2>)

Example variable values:

```json
{
  "area": "3,240 sqft",
  "beds": "4 beds",
  "date": "Sunday, July 12",
  "time": "1:00 - 4:00 PM",
  "agent": "Hosted by Rowan Ellis",
  "baths": "3.5 baths",
  "price": "$1.28M",
  "address": "1840 Laurel Ridge Drive",
  "headline": "Open House",
  "location": "Bend, Oregon"
}
```

## Similar templates to try

- [Exhibition Opening Announcement](https://htmlcsstoimage.com/templates/details/exhibition-opening-announcement.md): Promote an art opening, gallery night, studio show, or creative event with a polished announcement built for social sharing.
- [Flash Sale Post](https://htmlcsstoimage.com/templates/details/flash-sale-post.md): A direct sale post for product discounts and limited-time offers.
- [Gallery Season Poster](https://htmlcsstoimage.com/templates/details/gallery-season-poster.md): Promote a gallery season, exhibition series, or arts calendar with a vertical poster that feels editorial instead of generic.
- [Class Schedule Announcement](https://htmlcsstoimage.com/templates/details/class-schedule-announcement.md): Post a weekly class schedule, studio lineup, training calendar, or signup reminder in a clear vertical format.
- [Catering Promo Announcement](https://htmlcsstoimage.com/templates/details/catering-promo-announcement.md): Advertise catering packages, tasting events, private dining, or restaurant pop-ups with a polished announcement.
- [Event Night Announcement](https://htmlcsstoimage.com/templates/details/event-night-announcement.md): Announce a party, pop-up, live show, launch event, or local gathering with a bold vertical event graphic.

## Get started

- [View the full page](https://htmlcsstoimage.com/templates/playground?preset=uB24Puga)
- [Browse templates](https://htmlcsstoimage.com/templates.md)
- [Open the template playground](https://htmlcsstoimage.com/templates/playground.md)
- [Learn how the visual template editor works](https://htmlcsstoimage.com/features/template-editor.md)
- [Read the template API documentation](https://docs.htmlcsstoimage.com/getting-started/templates/)

Rendering or saving a template requires authenticated HTML/CSS to Image API credentials. Keep API keys in trusted server-side configuration. If credentials are not available, ask the user to configure an API key securely, then follow the template API documentation.