PHP development user login module HTML login page

First use HTML+CSS code to write a simple submission form

      
  
 
 
 用户名：  
 
 密码：  
 
 验证码：  
 
  
 
 
 

Secondly, in order to display the verification code module inside, you need to add JavaScript statements and introduce an external verification code PHP file:

 
 验证码：     
 

Note:

captcha.php is the external verification code file, and the verification code can be changed through the JavaScript onclick event.

The following is the complete login page login.html file code:

      
  
 
 
 用户名：  
 
 密码：  
 
 验证码：     
 
  
 
 
  

Display effect: