css后代选择器有哪些(2)-木庄网络博客

第三种形式:它并不可以同时选中 .b 和 .c，只能选中.c.

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />
        <title></title>
        <style>
            div{
                 
                padding: 20px;
                background: rgba(255,0,0,0.2);
            }
             
            .a .b .c{
                border: 2px solid black;
            }
             
             
        </style>
    </head>
    <body>
        <div class="a">a
            <div class="b">b
                <div class="c">c</div>
            </div>
        </div>
    </body>
</html>

还有一点需要注意如下代码：在类名为c的p中嵌套了一个p 中再嵌套了一个类名为c的p，这时同样会被选中

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />
        <title></title>
        <style>
            div{
                 
                padding: 20px;
                background: rgba(255,0,0,0.2);
            }
             
            .a .b .c{
                border: 2px solid black;
            }
             
             
        </style>
    </head>
    <body>
        <div class="a">a
            <div class="b">b
                <div class="c">c
                <div>
                    <div class="c">span</div>
                </div>
                </div>
            </div>
        </div>
    </body>
</html>