Removing ‘blue border’ from input text field

Removing 'blue border' from input text field
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Whenever you may face the issue  with anchor/link/input elements such as <a>, <button>, <input>, <textarea> show unexpected border when you clicked on the element, and how to remove it by CSS?

This is very easiest solution to remove show unexpected border.

To remove blue border on focus from all input, textarea and button

input, textarea, button {
 outline:none;
}

 

To remove blue border on focus from anchor point

a {
 outline:none;
}