The problem with opacity is that it will also affect the content, when often you do not want this to happen. If you just want your element ... ... <看更多>
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The problem with opacity is that it will also affect the content, when often you do not want this to happen. If you just want your element ... ... <看更多>
Transparent background with CSS - http://css-tricks.com/snippets/html/base64-encode-of-1x1px-transparent-gif/ - transparent-background-base64.css. ... <看更多>
How to make a background-image transparent in CSS. 287,074 views • May 8, 2020 • My course: Responsive ... ... <看更多>
The opacity property controls transparency and opacity of an element. ... Animatable: Yes; CSS Object Model Property: opacity; Percentages: N/A ... ... <看更多>