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How to set image transparency in css

醉折花枝作酒筹

Apr 13, 2021 pm 01:53 PM

csstransparency

In CSS, you can use the opacity attribute to set the transparency of the image. The syntax is "opacity: value", where the value range is between "0.0-1.0"; when the value is 1, it means completely opaque, when the value is A value of 0.5 represents translucence, and a value of 0 represents complete transparency.

How to set image transparency in css

The operating environment of this tutorial: Windows7 system, CSS3&&HTML5 version, Dell G3 computer.

Picture transparency setting

.opacity img{opacity: 0.5;}

The code and effect pictures are as follows.

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style> 
        body {
            background:url(../images/bg.jpg) no-repeat; 
            }
        .opacitybox{
            width: 400px;
            height: 200px;
            margin:0 auto; 
            margin-top:320px;
            }
        .opacity img{
            opacity: 0.5;
            }
    </style>
</head>
<body>
        <div class= "opacitybox opacity">
            <img src="/static/imghwm/default1.png"  data-src="../images/img.jpg"  class="lazy"   alt=""    style="max-width:90%">
        </div>
</body>
</html>

How to set image transparency in css

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