how to stretch the video feed from camera on p5.js

I’m using p5.js and created a program not using canvas(). Here’s my code:

        function setup() {
          asciiDiv = createDiv();
          noCanvas();
          video = createCapture(VIDEO);
          video.size(64, 48);
        }

how do I increase/stretch the size of the video to full screen without hurting the aspect ratio?

        function setup() {
          asciiDiv = createDiv();
          noCanvas();
          video = createCapture(VIDEO);
          video.size(64, 48);
        }