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Detailed explanation of how to remove the gray border when img[src=""] img has no path

高洛峰Original: 2017-03-28 10:25:224571browse

img[src=""] img tagSolution for gray border removal without path

1.JsSolution Method

<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
    </head>
    <body>
    <img src="error.jpg" onerror="whenError(this)">
    </body>
    <script>
    function whenError(a){
        a.onerror=null;
        a.src='path_default.jpg';
        console.log('图片出错的时候调用默认的图片');
    }
    </script>
</html>

2.Absolute positioningFocused solution

<!DOCTYPE html>
<html>

    <head>
        <meta charset="UTF-8">
        <title>absolute聚焦解决方案</title>
    </head>

    <body>
        <p class="container-img">
            <img class="common-icon login-icon" src="" width="38" height="38">
        </p>

    </body>
    <style type="text/css">
        .container-img {
            position: relative;
            display: inline-block;
            width: 36px;
            height: 36px;
            overflow: hidden;
            
        }
        .container-img img {
            position: absolute;
            top: -1px;
            right: -1px;
            background: url(img/common-icon.png) no-repeat;
            background-position: 0px 1px;
        }
    </style>

</html>

3.marginFocused solution

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title>margin聚焦解决方案</title>
    </head>

    <body>
        <p class="container-img">
            <img class="common-icon login-icon"  src="" width="38" height="38">
        </p>

    </body>
    <style type="text/css">
        .container-img {
            display: inline-block;
            width: 36px;
            height: 36px;
            overflow: hidden;
        }
        .common-icon {
            display: inline-block;
            background: url(img/common-icon.png) no-repeat;
            background-position: 0px 1px;
            margin: -1px;
        }
    </style>
</html>

4.css Hide

img[src=""]{
opacity: 0;
}

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