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Front End Scripts Articles
Page 22 of 47
Touchmove pointer-events: none CSS does not work on Chrome for Android 4.4 / ChromeView
The pointer-events: none CSS property doesn't work properly on Chrome for Android 4.4 (ChromeView) for touchmove events. This causes issues when trying to disable touch interactions on overlay elements. The Problem On Chrome for Android 4.4, elements with pointer-events: none still receive touchmove events, breaking the expected behavior where these elements should be non-interactive. Solution: Using touchstart with preventDefault() Instead of relying on CSS pointer-events: none, use JavaScript to handle and prevent touch events: Overlay Content const overlay = document.getElementById('overlay'); // Prevent all touch interactions overlay.addEventListener('touchstart', function(ev) ...
Read MoreUsage of border-right-width property in CSS
The border-right-width property controls the thickness of an element's right border. It only works when a border style is defined. Syntax border-right-width: value; Values Value Description thin Thin border (usually 1px) medium Medium border (usually 3px) thick Thick border (usually 5px) length Custom width (px, em, rem, etc.) Example with Different Widths .box { ...
Read MorePlaying MP4 video in WebView using HTML5 in Android
To play MP4 videos in Android WebView using HTML5, you need to enable JavaScript, DOM storage, and configure proper video handling. This requires both Android configuration and HTML5 video implementation. Android WebView Configuration First, configure your WebView settings to support HTML5 video playback: // Enable JavaScript and DOM storage WebSettings webSettings = webView.getSettings(); webSettings.setJavaScriptEnabled(true); webSettings.setDomStorageEnabled(true); webSettings.setAllowFileAccess(true); webSettings.setAllowContentAccess(true); webSettings.setMediaPlaybackRequiresUserGesture(false); // Enable hardware acceleration webView.setLayerType(View.LAYER_TYPE_HARDWARE, null); HTML5 Video Implementation Create an HTML page with HTML5 video element to play MP4 files: ...
Read MoreChange the color of the left border with CSS
The border-left-color property in CSS allows you to change the color of an element's left border independently from other borders. This property is useful when you want to create visual emphasis or design accents on specific sides of an element. Syntax border-left-color: color-value; Parameters The property accepts various color values: Color names: red, blue, green, etc. Hex values: #FF0000, #00FF00, etc. RGB values: rgb(255, 0, 0) HSL values: hsl(0, 100%, 50%) Example p.demo { ...
Read MoreHow to fire after pressing ENTER in text input with HTML?
There are several ways to detect when the ENTER key is pressed in a text input field. Here are the most common and effective approaches. Using jQuery with Custom Event This approach creates a custom "enterKey" event that triggers when ENTER is pressed: $(document).ready(function(){ $('input').bind("enterKey", function(e){ ...
Read MoreSet a border between two lines with CSS
Use the border-style property with double value to set a border with two lines. The double border style creates two solid lines with a gap between them, making it useful for highlighting content or creating visual separation. Syntax border-style: double; border-width: thickness; Example .no-border { border-width: 4px; border-style: ...
Read MoreIncrease or decrease units in HTML5 Canvas grid
HTML5 canvas provides the scale(x, y) method to increase or decrease the units in the canvas grid. This allows you to draw scaled down or enlarged shapes and bitmaps by transforming the coordinate system. The method takes two parameters: x is the scale factor in the horizontal direction and y is the scale factor in the vertical direction. Both parameters must be positive numbers. Values greater than 1 enlarge, while values between 0 and 1 shrink the grid. Syntax context.scale(x, y); Parameters x: Horizontal scaling factor (positive number) y: Vertical scaling factor ...
Read MoreWhat is composition in HTML5 Canvas?
HTML5 Canvas composition refers to how new shapes are drawn in relation to existing content on the canvas. The globalCompositeOperation property controls how newly drawn shapes combine with existing pixels. What is globalCompositeOperation? The globalCompositeOperation property determines the blending mode for new shapes. It affects transparency, layering, and how colors mix when shapes overlap. Syntax context.globalCompositeOperation = "operation-type"; Common Composition Types There are 12 main composition operations that control how new shapes interact with existing canvas content: ...
Read MoreDOMException Failed to load because no supported source was found
The "DOMException Failed to load because no supported source was found" error occurs when media elements (video, audio) cannot load their source files. This is commonly caused by CORS restrictions, incorrect file paths, or unsupported formats. Common Causes This error typically happens due to: Cross-Origin Resource Sharing (CORS) restrictions Incorrect file paths or missing media files Unsupported media formats Server configuration issues Method 1: Setting crossOrigin for CORS When loading media from different domains, set the crossOrigin attribute to handle CORS restrictions: const ...
Read MoreThe set border that looks as though it is carved into the page
The CSS border-style property with the groove value creates a border that appears carved into the page, giving it a 3D inset effect. This style is useful for creating visual depth and making elements appear recessed. Syntax border-style: groove; Example Groove Border Example This paragraph has no border style applied. ...
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