wordpress添加Html5的表单验证required方法小结

<input id="author" name="author" type="text" class="form-control" placeholder="昵称" required="required" value="' . esc_attr( $commenter['comment_author'] ) . '" size="30" />
 <input id="email" name="email" type="text" class="form-control" placeholder="272586593@QQ.com" required="required"  value="' .  esc_attr(  $commenter['comment_author_email'] ) . '" size="30" />

/*===包含required的表单===*/
/* 无效 */
input:required:invalid{
    CSS代码
}
/* 有效 */
input:required:valid{
    CSS代码
}