Code Documentation: Interactive "Hello World" Circle Website

online version of the code example

Overview

This document provides a detailed explanation of the HTML, CSS, and JavaScript code for an interactive website featuring a circular element with the text "Hello World". The website showcases various CSS animations and transforms, offering users an engaging and visually appealing experience.

HTML Structure

The HTML structure is simple and semantic, consisting of:

1. A <div class="container"> that holds the main content.

2. Inside the container, a <div class="circle"> contains the "Hello World" text.

3. A <div class="controls"> section houses the interactive buttons.

4. A separate button for toggling dark mode is positioned absolutely.

CSS Styles

Global Styles and Variables

The code uses CSS variables (custom properties) to define a color scheme:

:root {

  --bg-color: #e0e5ec;

  --text-color: #1a1a1a;

  --circle-color: #ffffff;

  --shadow-color: rgba(0, 0, 0, 0.1);

}

These variables allow for easy color management and smooth transitions between light and dark modes.

Neumorphic Design

The design follows neumorphic principles, utilizing subtle shadows and highlights:

.circle {

  box-shadow: 20px 20px 60px var(--shadow-color), -20px -20px 60px #ffffff;

}



button {

  box-shadow: 5px 5px 15px var(--shadow-color), -5px -5px 15px #ffffff;

}

Responsive Layout

The layout uses flexbox for centering content and allowing button wrapping on smaller screens:

body {

  display: flex;

  justify-content: center;

  align-items: center;

  min-height: 100vh;

}



.controls {

  display: flex;

  flex-wrap: wrap;

  justify-content: center;

}

Animations

Four keyframe animations are defined for the new effects:

1. @keyframes fade: Fades the circle in and out.

2. @keyframes slide: Moves the circle horizontally.

3. @keyframes jump: Animates a vertical jump.

4. @keyframes zoom: Scales the circle up and down.

These animations are applied to the circle using classes:

.fade { animation: fade 2s ease infinite; }

.slide { animation: slide 2s ease infinite; }

.jump { animation: jump 1s ease infinite; }

.zoom { animation: zoom 2s ease infinite; }

JavaScript Functionality

The JavaScript code manages the interactive features of the website.

Variables

const circle = document.querySelector('.circle');

let isFlippedH = false;

let isFlippedV = false;

let isSkewed = false;

let currentAnimation = '';

These variables track the circle's state and current animation.

Transform Functions

Functions like flipHorizontal(), flipVertical(), and skew() toggle boolean flags and call updateTransform():

function updateTransform() {

  removeAnimation();

  let transform = '';

  if (isFlippedH) transform += 'scaleX(-1) ';

  if (isFlippedV) transform += 'scaleY(-1) ';

  if (isSkewed) transform += 'skew(15deg, 15deg) ';

  circle.style.transform = transform;

}

This function applies the appropriate CSS transforms based on the circle's state.

Animation Functions

Functions like fade(), slide(), jump(), and zoom() manage CSS animations:

function fade() {

  removeAnimation();

  currentAnimation = 'fade';

  circle.classList.add('fade');

}

These functions remove any existing animation, set the current animation, and apply the new animation class.

Utility Functions

• reset(): Resets all transformations and animations.

• removeAnimation(): Removes the current animation class.

• toggleDarkMode(): Toggles the dark mode class on the body element.

Conclusion

This code demonstrates a harmonious integration of HTML, CSS, and JavaScript to create an interactive and visually appealing website. It showcases modern web development techniques including:

1. Responsive design using flexbox

2. CSS variables for theming

3. Neumorphic design principles

4. CSS animations and transforms

5. Event-driven JavaScript for interactivity

The modular structure of the code allows for easy maintenance and expansion, making it an excellent foundation for further development and customization.

This documentation essay provides a comprehensive overview of the code structure, styling techniques, and JavaScript functionality used in the interactive "Hello World" circle website. It explains the purpose and implementation of each major component, making it easier for developers to understand, maintain, and extend the code.

[More Code from JakeDavis224](https://codepen.io/J2A2K4E/full/XWLJzGm)