Css-related. The border of the existing color is displayed after the input field is clicked.

Css-related. The border of the existing color is displayed after the input field is clicked.

Css-related, clickAfter the field is entered, an existing border is displayed. If css is used, how can I remove the border generated by clicking the field? Below is

Before clicking the mouse:

After clicking the mouse:
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We cannot achieve this according to your methods. Even if you can change the color, the colored line still cannot be eliminated. The following is my html and css code: html:Css: # input_box {border-width: 0; border-color: white; border-style: none; background: none ;}# input_box: focus {border: 0 ;}

Use: focus pseudo-class to implement
 
 

  
  
 
   
 
    
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input:focus { outline:none;}
 
   
 
  
 
 
As shown above, you can change the color and pixel according to your specific needs.
To be nice, add the border-radius attribute based on the design style to increase the effect of corner corners.