Espruino Pico webserver

Hello i was wonder if there any why to make the pico a server to host a local webpage. I want to host a webpage to control the light on the pico itself but i don't know how to set it up on the pico or where to start.
------------------------------------HTML

<meta charset="UTF-8">
<title>Untitled Document</title>

<script>
    var light = function() {
        var p = document.getElementById("lightnumber").value;
        var q = document.getElementById("number");
        q.innerHTML = "Light: " + p + "%";
    }
</script>
<p>light intensity?<input  name="lightsorce" id="lightnumber" type="text"/>Percent<input type="submit" onclick="light()"/></p>
<p id="number">Light:</p>