script.js

var css = document.querySelector("h3");
var color1 = document.querySelector(".color1");
var color2 = document.querySelector(".color2");
var body = document.getElementById("gradient");

var button = document.getElementById("random");

window.onload=setGradient;
window.onload=randomColor;


function setGradient() {
	body.style.background = 
	"linear-gradient(to right, " 
	+ color1.value 
	+ ", " 
	+ color2.value 
	+ ")";

	css.textContent = body.style.background + ";";
}


function randomColor() {
	color1.value = rndgen();
	color2.value = rndgen();
	setGradient();
}

function rndgen() {
	return "#" + Math.floor(Math.random() * 16777215).toString(16);
}


color1.addEventListener("input", setGradient);

color2.addEventListener("input", setGradient);

button.addEventListener("click", randomColor);