How to set transparency of html img image
html How to set the transparency of img pictures: 1. Set the "opacity:value;" style to the img picture, and the value is between 0.0 (completely transparent) and 1.0 (completely opaque); 2. Give the img picture Set the "filter:opacity(%);" style.
The operating environment of this tutorial: Windows7 system, HTML5&&CSS3 version, Dell G3 computer.
html img image setting transparency
Method 1: Use opacity to set image transparency
Opacity Property sets the transparency level of an element.
Syntax:
1 |
|
Attribute value:
value: Specifies opacity. From 0.0 (fully transparent) to 1.0 (fully opaque)
Example:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 |
|
Rendering:
[Recommended tutorials: CSS video tutorial, "html video tutorial"]
Method 2: Use filter:opacity( %)
The filter attribute defines the visual effect (for example: blur and saturation) of the element (usually 
).
opacity(%): Convert the transparency of the image. The value defines the scale of the conversion. A value of 0% means complete transparency, a value of 100% means no change to the image. Values between 0% and 100% are linear multipliers of the effect, equivalent to multiplying the number of image samples. If the value is not set, the value defaults to 1. This function is very similar to the existing opacity attribute, except that through filter, some browsers provide hardware acceleration to improve performance.
Example:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 |
|
Rendering:
Introduction to Programming ! !
The above is the detailed content of How to set transparency of html img image. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1359
52
How to remove the default style in Bootstrap list?
Apr 07, 2025 am 10:18 AM
The default style of the Bootstrap list can be removed with CSS override. Use more specific CSS rules and selectors, follow the "proximity principle" and "weight principle", overriding the Bootstrap default style. To avoid style conflicts, more targeted selectors can be used. If the override is unsuccessful, adjust the weight of the custom CSS. At the same time, pay attention to performance optimization, avoid overuse of !important, and write concise and efficient CSS code.
How to use bootstrap button
Apr 07, 2025 pm 03:09 PM
How to use the Bootstrap button? Introduce Bootstrap CSS to create button elements and add Bootstrap button class to add button text
How to resize bootstrap
Apr 07, 2025 pm 03:18 PM
To adjust the size of elements in Bootstrap, you can use the dimension class, which includes: adjusting width: .col-, .w-, .mw-adjust height: .h-, .min-h-, .max-h-
How to insert pictures on bootstrap
Apr 07, 2025 pm 03:30 PM
There are several ways to insert images in Bootstrap: insert images directly, using the HTML img tag. With the Bootstrap image component, you can provide responsive images and more styles. Set the image size, use the img-fluid class to make the image adaptable. Set the border, using the img-bordered class. Set the rounded corners and use the img-rounded class. Set the shadow, use the shadow class. Resize and position the image, using CSS style. Using the background image, use the background-image CSS property.
How to upload files on bootstrap
Apr 07, 2025 pm 01:09 PM
The file upload function can be implemented through Bootstrap. The steps are as follows: introduce Bootstrap CSS and JavaScript files; create file input fields; create file upload buttons; handle file uploads (using FormData to collect data and then send to the server); custom style (optional).
How to build a bootstrap framework
Apr 07, 2025 pm 12:57 PM
To create a Bootstrap framework, follow these steps: Install Bootstrap via CDN or install a local copy. Create an HTML document and link Bootstrap CSS to the <head> section. Add Bootstrap JavaScript file to the <body> section. Use the Bootstrap component and customize the stylesheet to suit your needs.
How to layout bootstrap
Apr 07, 2025 pm 02:24 PM
To use Bootstrap to layout a website, you need to use a grid system to divide the page into containers, rows, and columns. First add the container, then add the rows in it, add the columns within the row, and finally add the content in the column. Bootstrap's responsive layout function automatically adjusts the layout according to breakpoints (xs, sm, md, lg, xl). Different layouts under different screen sizes can be achieved by using responsive classes.
How to verify bootstrap date
Apr 07, 2025 pm 03:06 PM
To verify dates in Bootstrap, follow these steps: Introduce the required scripts and styles; initialize the date selector component; set the data-bv-date attribute to enable verification; configure verification rules (such as date formats, error messages, etc.); integrate the Bootstrap verification framework and automatically verify date input when form is submitted.
