How to change the highlight color of textbox using focus selector in css

Question

I\'m new to CSS. I have a input text field where I need to change the color of the border from red to another color. I used focus selector in CSS

Answer 1

. is missing from text class and try pointing from input

input.text:focus {
  border-color: green;
  outline: 0;
  -webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(102, 175, 233, 0.6);
  box-shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(102, 175, 233, 0.6);
}  

DEMO