Overview

A collection of web-based projects showcasing HTML, CSS, and JavaScript development. These projects demonstrate responsive design, modern styling, and clean UI/UX principles.

Location: ~/workspace/source/proyectos/web insulatio/
Technologies: HTML5, CSS3, Responsive Design
Style: Dark theme, modern gradients

Project: Closed Page Template

A professionally designed “page closed” or “maintenance mode” template with modern styling and accessibility features.

Live Preview

Página cerrada

Lo sentimos, esta página ya no está disponible.

HTML Structure

Document Setup

<html lang="es">
  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width,initial-scale=1" />
    <title>Página cerrada</title>
    <!-- Inline CSS styles -->
  </head>
  <body>
    <!-- Content -->
  </body>
</html>

CSS Variables

The template uses CSS custom properties for easy theming:

:root {
  --bg: #cfcfcf;      /* Page background - light gray */
  --card: #3a3a3a;    /* Card background - dark gray */
  --text: #ffffff;    /* Text color - white */
  --accent: #d32f2f;  /* Accent color - red */
}

Styling System

Layout Components

Container
Card
Typography

.wrap {
  min-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  box-sizing: border-box;
}

Creates a full-height flexbox container that centers content vertically and horizontally.

.card {
  width: 100%;
  max-width: 820px;
  background: linear-gradient(180deg, 
              rgba(58,58,58,0.98) 0%, 
              rgba(48,48,48,0.98) 100%);
  border-radius: 12px;
  box-shadow: 0 12px 30px rgba(0,0,0,0.25);
  padding: 48px;
  box-sizing: border-box;
  text-align: center;
  border-top: 6px solid var(--accent);
}

Styled card with gradient background, shadow, and accent border.

h1 {
  margin: 0 0 18px 0;
  font-size: 36px;
  letter-spacing: 0.6px;
  color: var(--text);
}

p.lead {
  margin: 0 0 28px 0;
  font-size: 18px;
  color: var(--text);
  opacity: 0.95;
}

Responsive Design

@media (max-width: 520px) {
  .card { 
    padding: 28px;  /* Reduced padding on mobile */
  }
  h1 { 
    font-size: 28px;  /* Smaller heading on mobile */
  }
}

Breakpoint: 520px for mobile optimization

Content Sections

Main Message

<div class="card" role="main" aria-labelledby="title">
  <h1 id="title">Página cerrada</h1>
  <p class="lead">Lo sentimos, esta página ya no está disponible.</p>
  
  <div class="below" aria-label="Información adicional">
    <span class="reason">
      <strong>Motivo:</strong> falta de manteniento y mal funcionamiento
    </span>
    <p>es pocible que la pagina regrese pero solo por peticion de el asociado</p>
    <span class="signature">
      <strong>Att:</strong> Daniel 
    </span>
  </div>
</div>

Additional Info Section

.below {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px dashed rgba(255,255,255,0.08);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
}

.reason {
  display: block;
  margin-bottom: 10px;
}

.signature {
  font-weight: 600;
  color: var(--text);
}

Link Styling

a.url {
  display: inline-block;
  margin-top: 8px;
  text-decoration: none;
  color: var(--accent);
  background: rgba(211,47,47,0.07);
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid rgba(211,47,47,0.15);
  font-family: monospace;
}

Link styling uses accent color with subtle background and border for a button-like appearance.

Accessibility Features

ARIA Labels

<!-- Main content role -->
<div class="card" role="main" aria-labelledby="title">
  <h1 id="title">Página cerrada</h1>
  
  <!-- Descriptive labels for screen readers -->
  <div class="below" aria-label="Información adicional">
    <!-- Content -->
  </div>
</div>

Semantic HTML

Proper Headings

Uses <h1> for main title, properly associated with ARIA labelledby

Meta Viewport

Ensures proper scaling on mobile devices

Lang Attribute

lang="es" declares Spanish language for screen readers

Semantic Tags

Uses <strong>, <span>, proper paragraph structure

Color Palette

Neutral Colors
Accent Colors
Effects

Color	Hex	Usage
Light Gray	`#cfcfcf`	Page background
Dark Gray 1	`#3a3a3a`	Card start gradient
Dark Gray 2	`#303030`	Card end gradient
White	`#ffffff`	Text color

Color	Hex	Usage
Red	`#d32f2f`	Accent, borders, links
Red Alpha	`rgba(211,47,47,0.07)`	Link backgrounds
Red Border	`rgba(211,47,47,0.15)`	Link borders

Effect	Value	Usage
Text Opacity	`0.95`	Lead paragraph
Shadow	`0 12px 30px rgba(0,0,0,0.25)`	Card elevation
Gradient	`180deg, rgba(58,58,58,0.98) → rgba(48,48,48,0.98)`	Card background

Typography

Font Stack

font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, 
             "Helvetica Neue", Arial;

System font stack prioritizes native OS fonts for optimal rendering and performance.

Font Settings

html, body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

Enables font smoothing for better rendering on all platforms.

Customization Guide

Changing Color Scheme

:root {
  --bg: #e3f2fd;      /* Light blue */
  --card: #1565c0;    /* Dark blue */
  --text: #ffffff;
  --accent: #ff6f00;  /* Orange accent */
}

Modifying Layout

Change Card Width

.card {
  max-width: 1000px;  /* From 820px to 1000px */
}

Adjust Padding

.card {
  padding: 60px;  /* From 48px to 60px */
}

Modify Border

.card {
  border-top: 8px solid var(--accent);  /* Thicker border */
  border-radius: 16px;                   /* More rounded */
}

Adding Content

<!-- Add contact information -->
<div class="below" aria-label="Información adicional">
  <span class="reason">
    <strong>Motivo:</strong> Mantenimiento programado
  </span>
  
  <!-- New section -->
  <div style="margin-top: 20px;">
    <strong>Contacto:</strong><br>
    Email: [email protected]<br>
    Teléfono: +52 123 456 7890
  </div>
  
  <span class="signature">
    <strong>Att:</strong> Equipo Técnico
  </span>
</div>

Additional Web Files

The project includes multiple HTML files:

index.html

Main closed page template (114 lines)
Production-ready
Fully styled with inline CSS

index2.html

Alternative version (details not provided)
Likely contains different content or styling variations

Assets

web insulatio/
├── index.html       # Main template (2,990 bytes)
├── index2.html      # Alternative page (5,285 bytes)
├── imagen1.webp     # WebP image (31,166 bytes)
├── imagen2.jpg      # JPEG image (7,070 bytes)
└── logo.jpg         # Logo (26,496 bytes)

Best Practices Implemented

Performance

Inline CSS (no external requests)
System fonts (no web font downloads)
Minimal DOM structure
Optimized images (WebP format)

Accessibility

Semantic HTML5
ARIA labels
Proper heading hierarchy
Sufficient color contrast

Responsive

Mobile-first viewport meta
Fluid typography
Flexible layouts
Media query breakpoints

Maintainability

CSS custom properties
BEM-like naming
Clear structure
Commented sections

Usage Scenarios

Maintenance Mode
Coming Soon
404 Error

<h1>Sitio en Mantenimiento</h1>
<p class="lead">Estamos mejorando nuestro sitio para ti.</p>
<div class="below">
  <span class="reason">
    <strong>Tiempo estimado:</strong> 2-3 horas
  </span>
  <p>Volveremos pronto con mejoras increíbles.</p>
</div>

<h1>Próximamente</h1>
<p class="lead">Algo emocionante está por llegar.</p>
<div class="below">
  <span class="reason">
    <strong>Lanzamiento:</strong> Diciembre 2026
  </span>
  <p>Suscríbete para recibir notificaciones.</p>
</div>

<h1>Página No Encontrada</h1>
<p class="lead">La página que buscas no existe.</p>
<div class="below">
  <span class="reason">
    <strong>Error:</strong> 404
  </span>
  <p>Verifica la URL o regresa al inicio.</p>
  <a href="/" class="url">Ir al Inicio</a>
</div>

Browser Compatibility

Feature	Chrome	Firefox	Safari	Edge
CSS Variables	✅ 49+	✅ 31+	✅ 9.1+	✅ 15+
Flexbox	✅ 29+	✅ 28+	✅ 9+	✅ 12+
Gradients	✅ 26+	✅ 16+	✅ 6.1+	✅ 12+
Media Queries	✅ All	✅ All	✅ All	✅ All

File Reference

Main File: /home/daytona/workspace/source/proyectos/web insulatio/index.html:1
Lines: 114
Size: 2,990 bytes
Format: HTML5 with inline CSS

miPOS System

Desktop POS application with Tkinter GUI

AI Voice Assistant

Voice-controlled smart assistant

Development Notes

Creator: Daniel (Daniel Tecnologi)
Purpose: Template for closed/maintenance pages
Status: Production-ready, fully functional
License: Open source educational project

Get Started

Software Projects

Hardware Projects

Development Guides

​Overview

​Project: Closed Page Template

​Live Preview

​Página cerrada

​HTML Structure

​Document Setup

​CSS Variables

​Styling System

​Layout Components

​Responsive Design

​Content Sections

​Main Message

​Additional Info Section

​Link Styling

​Accessibility Features

​ARIA Labels

​Semantic HTML

Proper Headings

Meta Viewport

Lang Attribute

Semantic Tags

​Color Palette

​Typography

​Font Stack

​Font Settings

​Customization Guide

​Changing Color Scheme

​Modifying Layout

​Adding Content

​Additional Web Files

​index.html

​index2.html

​Assets

​Best Practices Implemented

Performance

Accessibility

Responsive

Maintainability

​Usage Scenarios

​Browser Compatibility

​File Reference

​Related Projects

miPOS System

AI Voice Assistant

​Development Notes

Build docs developers (and LLMs) love

Overview

Project: Closed Page Template

Live Preview

Página cerrada

HTML Structure

Document Setup

CSS Variables

Styling System

Layout Components

Responsive Design

Content Sections

Main Message

Additional Info Section

Link Styling

Accessibility Features

ARIA Labels

Semantic HTML

Color Palette

Typography

Font Stack

Font Settings

Customization Guide

Changing Color Scheme

Modifying Layout

Adding Content

Additional Web Files

index.html

index2.html

Assets

Best Practices Implemented

Usage Scenarios

Browser Compatibility

File Reference

Related Projects

Development Notes