希望能实现一级、二级标题，自动添加序号。例如1、1.1、1.2等。

尝试添加css，但是只能实现一级标题自增效果：

:root {

counter-reset:counter_h1;counter_h2;

}

h1 {

    counter-increment: counter_h1;

    counter-reset:counter_h2;

}

h1::before {

    content: counter(counter_h1)"、";

}

h2 {

     counter-increment: counter_h2;

}

h2::before {

    content: counter(counter_h1)"."counter(counter_h2)"、";

}