change border color code example

Example 1: border color css

border: 1px solid #000000;

Example 2: border color css

border: 1px;
border-color: #3581fc;

Example 3: javascript for border color

var getColor = prompt("Choose your color ", "Enter the  color ");
 var color;
 var el = document.getElementById("color");
 el.innerHTML = "Whatever paragraph message.";
 if (getColor =="Yellow" || getColor =="yellow" || getColor =="YELLOW"){
     color = "#FFFF66";
     el.style.borderColor = color;
 }

Example 4: add color to border css

div {border-color: coral;}