我在使背景颜色小于该 div 中的图像时遇到问题。尝试了 background-size 属性并搜索了网络。在该图像上使用带有 img-responsive 类的引导程序。这是我想要做的示例。我不能使用该背景颜色制作新图像。 谢谢你的帮助。 White logo is png image and blue the background color. Black is the background image of the body.
【问题讨论】：
您可以在其他元素后面创建一个 DIV，该 DIV 将与 background-color 完全一样。 例如：
<!DOCTYPE html>
<html>
<head>
<style type="text/css">
#background {
position:absolute;
top:20px;
bottom:20px;
right:20px;
left:20px;
margin:auto;
background-color:red;
}
</style>
</head>
<body>
<div id="background"></div>
</body>
</html>
【讨论】：
试试这个
<style>
.logo{background-color:#000;}
.img-responsive {position:relative;z-index:1;}
.img-responsive:after {content:"",position:absolute; top:0;left:0;width:100%;height:100%;background:blue;z-index:-1;}
</style>
<div class="col-sm-3 logo"> <img src="img/logo.png" class="img-responsive"> </div>
【讨论】：
您可以使用 svg 并将颜色更改为图像
<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
width="612px" height="502.174px" viewBox="0 65.326 612 502.174" enable-background="new 0 65.326 612 502.174"
xml:space="preserve" class="logo">
<ellipse class="ground" cx="283.5" cy="487.5" rx="259" ry="80"/>
<path class="kiwi" d="M210.333,65.331C104.367,66.105-12.349,150.637,1.056,276.449c4.303,40.393,18.533,63.704,52.171,79.03
c36.307,16.544,57.022,54.556,50.406,112.954c-9.935,4.88-17.405,11.031-19.132,20.015c7.531-0.17,14.943-0.312,22.59,4.341
c20.333,12.375,31.296,27.363,42.979,51.72c1.714,3.572,8.192,2.849,8.312-3.078c0.17-8.467-1.856-17.454-5.226-26.933
c-2.955-8.313,3.059-7.985,6.917-6.106c6.399,3.115,16.334,9.43,30.39,13.098c5.392,1.407,5.995-3.877,5.224-6.991
c-1.864-7.522-11.009-10.862-24.519-19.229c-4.82-2.984-0.927-9.736,5.168-8.351l20.234,2.415c3.359,0.763,4.555-6.114,0.882-7.875
c-14.198-6.804-28.897-10.098-53.864-7.799c-11.617-29.265-29.811-61.617-15.674-81.681c12.639-17.938,31.216-20.74,39.147,43.489
c-5.002,3.107-11.215,5.031-11.332,13.024c7.201-2.845,11.207-1.399,14.791,0c17.912,6.998,35.462,21.826,52.982,37.309
c3.739,3.303,8.413-1.718,6.991-6.034c-2.138-6.494-8.053-10.659-14.791-20.016c-3.239-4.495,5.03-7.045,10.886-6.876
c13.849,0.396,22.886,8.268,35.177,11.218c4.483,1.076,9.741-1.964,6.917-6.917c-3.472-6.085-13.015-9.124-19.18-13.413
c-4.357-3.029-3.025-7.132,2.697-6.602c3.905,0.361,8.478,2.271,13.908,1.767c9.946-0.925,7.717-7.169-0.883-9.566
c-19.036-5.304-39.891-6.311-61.665-5.225c-43.837-8.358-31.554-84.887,0-90.363c29.571-5.132,62.966-13.339,99.928-32.156
c32.668-5.429,64.835-12.446,92.939-33.85c48.106-14.469,111.903,16.113,204.241,149.695c3.926,5.681,15.819,9.94,9.524-6.351
c-15.893-41.125-68.176-93.328-92.13-132.085c-24.581-39.774-14.34-61.243-39.957-91.247
c-21.326-24.978-47.502-25.803-77.339-17.365c-23.461,6.634-39.234-7.117-52.98-31.273C318.42,87.525,265.838,64.927,210.333,65.331
z M445.731,203.01c6.12,0,11.112,4.919,11.112,11.038c0,6.119-4.994,11.111-11.112,11.111s-11.038-4.994-11.038-11.111
C434.693,207.929,439.613,203.01,445.731,203.01z"/>
<filter id="pictureFilter" >
<feGaussianBlur stdDeviation="15" />
</filter>
</svg>【讨论】：
你可以使用伪元素来做到这一点
div {
background: black;
}
span {
position: relative;
display: inline-block;
}
span::before {
content: ' ';
position: absolute;
left: 0;
top: 50px;
right: 0;
bottom: 50px;
background: lightblue;
}
span img {
position: relative;
height: 200px;
}<div>
<span>
<img src="https://i.stack.imgur.com/iYFJA.png">
</span>
</div>【讨论】：