Detailed explanation of usage examples of CSS3 :not() pseudo-class selector-CSS Tutorial-php.cn

Detailed explanation of usage examples of CSS3 :not() pseudo-class selector

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Release： 2017-05-05 15:41:55

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CSS3’s new :not() pseudo-class selector matches elements that do not contain selectors. Suppose there is a list. Each list item has a bottom line, but the last item does not need a bottom line. The case is as follows:

<!DOCTYPE>
<html>
<head>
<meta charset="utf-8" />
<title>使用:not() 最后一行li不添加边框</title>
<style type="text/css">

/*    
    使字体在所有设备上都达到最佳的显示
*/
html { 
    -moz-osx-font-smoothing: grayscale; 
    -webkit-font-smoothing: antialiased; 
    text-rendering: optimizeLegibility; 
}

/*
    给body添加阴影
*/
body:before {
    content: "";
    position: fixed;
    top: -10px;
    left: 0;
    width: 100%;
    height: 10px;
    -webkit-box-shadow: 0px 0px 10px rgba(0,0,0,.8);
    -moz-box-shadow: 0px 0px 10px rgba(0,0,0,.8);
    box-shadow: 0px 0px 10px rgba(0,0,0,.8);
    z-index: 100;
}

/*
    设置列表
*/
.listItem {
    border: 1px solid red;
}

.listItem ul {
    width: 100%;
    overflow:hidden;
}

.listItem ul,listItem li {
    margin:0;
    padding:0;
    list-style:none;

}
.listItem li {
   margin-left:10px;
}
/*
    li 最后一个元素不添加边框
*/
.listItem li:not(:last-child) {
    border-bottom:1px solid green;        
}

/*
    与第一个li相连兄弟
*/
.listItem  li:first-child ~ li { border-left: 1px solid #666; }

</style>
</head>

<body>

    <p class="listItem">
        <ul>
            <li>列表1</li>
            <li>列表2</li>
            <li>列表3</li>
            <li>列表4</li>
            <li>列表5</li>
        </ul>
    </p>
</body>
</html>

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