元素设置了背景颜色，F12看属性也有，但是界面不显示

img


.rbslider-item-list li {
    /*float: left;*/
    width: 30%;
    height:40%;
    margin-left: 9px;
    position: relative;
    display: inline-block;
    min-width: 124px;
    background-color:rgb(182, 15, 15);
    padding: 22px 0px;
    border-radius: 4px;
    box-shadow: 0 0 16px 0 rgba(44, 45, 45, .2);
    z-index: 50;
}

.clearfix:after {
    content: "";
    height: 0;
    display: block;
    clear: both;
}

body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

<div class="section-content rbslider-item-list-wrapper" style="overflow: hidden;">
        <ul class="rbslider-item-list clearfix rbslider-item-box">
            <li>
            <a href="#">
                <div class="img-box">
                    <div class="img"><img src="C:\Users\Administrator\Desktop\pageall\images\ico_seo.png" alt="xx医院" /></div>
                </div>
</li> </ul> </div>

!important 写上这个属性强制一下呢

把宽和高写成px试下

我这边看着有颜色啊
img