background-imageopacity

2021年12月15日—ExploretwoapproachestochangetheopacityofanimageinthebackgroundwithCSS.,,2011年2月14日—Takeyourimageintoanimageeditor,turndowntheopacity,saveitasa.pngandusethatinstead.,First,wecreatea

element(class=background)withabackgroundimage,andaborder.Thenwecreateanother
(class=transbox)insidethefirst< ...,2020年2月21日—Quicksolutiontohowyoucanchangebackground-imageo...

參考資訊如下
How to Change a CSS Background Image&#39;s Opacity

2021年12月15日 — Explore two approaches to change the opacity of an image in the background with CSS.

How to Change Background Image Opacity with HTML &amp; CSS

Set opacity of background image without affecting child ...

2011年2月14日 — Take your image into an image editor, turn down the opacity, save it as a .png and use that instead.

CSS Image Opacity Transparency

First, we create a &lt;div&gt; element (class=background) with a background image, and a border. Then we create another &lt;div&gt; (class=transbox) inside the first &lt; ...

How to change background

2020年2月21日 — Quick solution to how you can change background-image opacity using CSS without affecting the text content or child HTML elements.

[ Day 1 ] [ CSS ] 如何改變Background Image 背景圖片的不透明度

我在5 個區塊元素上，分別設定不同的 opacity 值，可以看到1.0 的元素，呈現完全不透明，然後一直遞減到0 完全透明。 https://ithelp.ithome.com.tw/upload/images/. 來到 ...

Transparent Background

2021年9月15日 — The opacity property takes values from 0.0 to 1.0 , with 1 being the default value for all elements. The lower the value, the more transparent.

How to Set Opacity of Images, Text &amp; More in CSS

2021年5月31日 — To set the opacity of a background, image, text, or other element, you can use the CSS opacity property. Values for this property range from 0 ...

Lower the opacity of a background-image with CSS

How to change the CSS background opacity of an element

2023年3月15日 — You can change the positioning and styling of the background image using background properties such as background-position and background-size .