change input border color on focus code example

Example 1: change input border color when selected

input:focus {
	outline: none;
  	border: 1px solid red;
}

Example 2: color background to input boxes on focus

input:focus {
  background-color: yellow;
}

Example 3: focus on input change label color

.input-group {
    display: flex;
    flex-direction: column-reverse;
}

input:focus + label {
    color: red;
}