PHP前端开发

设计专注于 CSS 的元素

百变鹏仔 4周前 (09-20) #CSS
文章标签 元素

要选择具有焦点的元素,请使用:焦点选择器。您可以尝试运行以下代码来实现:焦点选择器 -

示例

<!DOCTYPE html><html>   <head>      <style>         input:focus {            background-color: green;         }      </style>   </head>   <body>      <form action = "">         Subject <input type = "text" name = "subject"><br>         Student: <input type = "text" name = "student"><br>         Age: <input type = "number" name" = age><br>         <input type = "submit" value="Submit">      </form>   </body></html>