🛠️ pakheritagestore

Box Shadow Generator

Create beautiful CSS box-shadow effects with real-time preview and multiple shadow layers

Shadow Controls

Shadow Layer 1

px
px
px
px
%

Shadow Presets:

Live Preview

Preview

Generated CSS

CSS Implementation Examples

Class-based Usage

/* CSS */
.shadow-custom {
box-shadow: 0px 5px 10px 0px rgba(0, 0, 0, 0.25);
}

/* HTML */
<div class="shadow-custom">Content</div>

Inline Style Usage

/* HTML */
<div style="
box-shadow: 0px 5px 10px 0px rgba(0, 0, 0, 0.25);
">Content</div>

Shadow Properties

Horizontal Offset (X)
Positive values move shadow right, negative values move left
Vertical Offset (Y)
Positive values move shadow down, negative values move up
Blur Radius
Higher values create more blurred shadows
Spread Radius
Positive values expand shadow, negative values shrink it
Inset
Creates inner shadow instead of outer shadow

Design Tips

Subtle Shadows
Use low opacity (10-30%) for natural-looking shadows
Layered Effects
Combine multiple shadows for depth and realism
Color Matching
Use darker versions of your element color for natural shadows
Performance
Avoid excessive blur values for better rendering performance

Features

  • 🎨 Real-time visual shadow preview
  • 🔄 Multiple shadow layers support
  • 🎯 Precise control over all shadow properties
  • 📋 Ready-to-use CSS code generation
  • 🎪 Built-in shadow presets
  • 💾 CSS download and copy functionality

Use Cases

  • 🎨 UI element styling and depth
  • 📱 Card and button design
  • 🎯 Focus states and hover effects
  • 🏷️ Modal and dropdown shadows
  • 🖼️ Image and gallery effects
  • 📄 Layout and section separation

Example algorithm (days)

// Using date objects in most languages:
days = (date2 - date1).days
Example: Days between 2025-01-01 and 2025-03-01 = 59 days (non-leap year).

6. Days Until

What it does: "Days Until" calculates how many days remain until a target date (a birthday, holiday, event). It is essentially a date-difference from today to a future date but often presented with friendly copy and optional recurrence handling for yearly events.

Features

Example: Today is 2025-09-24 — Days until 2025-12-25 (Christmas) = 92 days.

Putting it all together — Building reliable web calculators

Here are practical tips for developers and product managers building these tools on websites and mobile apps:

Sample HTML form (simplified)

<form id="percentage-form">
<label>Base: <input name="base" type="number" step="any" /></label>
<label>Percentage: <input name="percent" type="number" step="any" /></label>
<button type="submit">Calculate</button>
</form>

Attach client-side JS to compute results instantly and show them inside an accessible result container.

Design & SEO considerations

These calculator pages are highly searchable. Follow these quick SEO tips:

Conclusion

Age, Percentage, Loan, BMI, Date Difference, and Days Until calculators are simple but powerful tools that deliver immediate value. When implemented carefully — with correct formulas, clear UX, accessibility, and privacy considerations — they can significantly improve user engagement and trust. Developers should prefer reliable libraries for date and numeric handling, clearly document assumptions, and provide helpful explanations so users can understand and act on their results.

If you’d like, I can also provide ready-to-use JavaScript snippets for any of the calculators above (for example, a full amortization table script for the Loan Calculator or a BMI widget with unit toggles). Tell me which one you want first and I’ll include a copy-pasteable implementation.

Written as a detailed guide for developers and product teams building small utility calculators for web and mobile. Updated: 2025-09-24.