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  • The importance of beginPath() and closePath() in canvas in HTML5

    The importance of beginPath() and closePath() in canvas in HTML5

    The function of beginPath is very simple, it is to start a new path, but it is very important in the process of using canvas drawing. Let's look at a small piece of code first: var ctx=document.getElementById(canvas).getContext(2d); ctx.
    2025-02-02
  • HTML page source code layout introduction

    HTML page source code layout introduction

    Introduction of the HTML page source code layout is based on the screenshot of the Google homepage source code as an example: Introduction from top to bottom:<!DOCTYPE html> This label can inform the browser documents which HTML or XHTML specifications ar
    2025-02-02
  • html5 understands head_ power node Java college finishing

    html5 understands head_ power node Java college finishing

    The HEAD part of the HTML document usually includes the designated page title, which provides information about the page itself, loads the style table, and loads the JavaScript file (for performance considerations, most of the time is placed on the bottom
    2025-02-02
  • Implementation of HTML5 responsive (adaptive) web design

    Implementation of HTML5 responsive (adaptive) web design

    This article introduces the implementation of HTML5 responsive (adaptive) web design and shares it with everyone. The details are as follows: Step 1: Add a line of viewport meta tags to the head of the web page code.
    2025-02-02
  • Teach you how to use Canvas to process pictures

    Teach you how to use Canvas to process pictures

    Canvas, translated into Chinese as canvas, is new in HTML5<canvas> Elements that can be combined with JavaScript to dynamically draw graphics in the canvas. Today, we will not talk about graphics drawing in Canvas, but how to process pictures. The process
    2025-02-02
  • Html label meta summary, html5 head meta attribute finishing

    Html label meta summary, html5 head meta attribute finishing

    Foreword Meta is an auxiliary label in the HEAD area of ​​HTML language. Maybe you think these codes are optional. In fact, if you can make good META tags, it will bring you unexpected effects. The role of META labels is: search engine optimization (SEO),
    2025-02-02
  • HTML5 application file upload

    HTML5 application file upload

    For a long time, developers have been distressed by this. Most of them have used Flash as solutions for solving this problem, but Flash is not a piomacetizer. Because of the Flash version, problems caused by cutting sometimes become nightmares. Some websi
    2025-02-02
  • html5 development of Queen's Day confession artifact

    html5 development of Queen's Day confession artifact

    The renderings are as follows: Knowledge points used in developing the March 8th Queen's Day Confession Artifact: css33D scenes, 3D transformations, love making skills, 3D cube making skills, custom animations, native js DOM node operations, loops, et
    2025-02-02
  • Example code for using canvas to draw a trajectory by holding down the mouse and moving it

    Example code for using canvas to draw a trajectory by holding down the mouse and moving it

    Summary: Since I started working, I have written about vue, react, regularity, algorithms, small programs, etc., but I have never written about canvas, because I really don’t know how! In 2018, I set a small goal for myself: learn canvas, and achieve the
    2025-02-02
  • Html background picture and background color

    Html background picture and background color

    1. HTML image<img> 1.<img> The label and its src attribute are in HTML, and the image is caused by the image<img> Label definition.<img> It is an empty label, which means that it only contains attributes and does not close the tag (but end directly by/&gt
    2025-02-01
  • How to draw a vertical line between two div tags in HTML

    How to draw a vertical line between two div tags in HTML

    Recently, when I was drawing an interface, I encountered a requirement: draw a vertical line in the interface, and the height of this vertical line needs to automatically occupy the entire parent div (that is, the height of this vertical line is the same
    2025-02-01
  • HTML5 Common Interview Questions: Introduction to the Differences Between PC and Mobile Terminals

    HTML5 Common Interview Questions: Introduction to the Differences Between PC and Mobile Terminals

    1. Concept 1. What is the difference between the PC terminal and the mobile terminal? From my personal point of view, I think the positioning of the PC terminal is the user's visual browsing route, which can display more content, while the positioning
    2025-02-01
  • Implementation method of how canvas draws line segments

    Implementation method of how canvas draws line segments

    To learn canvas, you must first know how to draw line segments, and then you can use many simple line segments to realize more complex graphics. For example, common charts, bar charts, line charts, etc. are all realized through line segments. Basic knowle
    2025-02-01
  • Use PhoneGap to play audio implementation method

    Use PhoneGap to play audio implementation method

    Examples as: below:<!DOCTYPE html><html><head><meta charset=UTF-8><title> Compass exmple</title>
    2025-02-01
  • Html example of blocking right-click menu and left-click swipe function

    Html example of blocking right-click menu and left-click swipe function

    Disable right-click menu<body oncontextmenu=self.event.returnValue=false> Disable left-click copying. Use CSS to control whether text can be selected.unselec
    2025-02-01
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