Border radius on Focus input field

Question

how can we adjust the border radius of the input field focus.

HTML

CSS

.r         


        

Answer 1

The other answers have covered the solution, however, the supplied CSS styles do not accurately reproduce the blue ring color or size. For example, replacing:

:focus {
    outline: -webkit-focus-ring-color auto 5px;
}

With the solutions provided, results in a purple-tinted blue before and after pic. Instead, try this color:

.rest:focus {
  outline: none; 
  border-radius: 8px;  /* Your border radius here */
  box-shadow: 0px 0px 1px rgba(0,100,255,1),
              0px 0px 2px rgba(0,100,255,1),
              0px 0px 3px rgba(0,100,255,1); /* #0064FF */
}