input field border color css code example
Example 1: change border highlight color on an input text element
input:focus {
outline: none !important;
border-color: #719ECE;
box-shadow: 0 0 10px #719ECE;
}
textarea:focus {
outline: none !important;
border-color: #719ECE;
box-shadow: 0 0 10px #719ECE;
}
Example 2: how to change input border color with js
document.getElementById("fName").className = document.getElementById("fName").className + " error";
document.getElementById("fName").className = document.getElementById("fName").className.replace(" error", "");