Project Euler Problem 1

dabblet.css

/**
 * Project Euler Problem 1
 */
 
 h1 {
 padding: 50px;
 font:30px helvetica,sans-serif;
 }

dabblet.html

<h1>Total:</h1>

<p id="number"></p>

dabblet.js

function add() {
    var n = 0,
    count = 0;
    
    while (n < 1000) {
        if (n % 3 == 0 || n % 5 == 0) {
            count = count + n;
        }
        n++;
    }
    return count;
}

document.getElementById('number').innerHTML = add();

settings.json

{"view":"split-vertical","fontsize":"100","seethrough":"","prefixfree":"1","page":"javascript"}