Modifying our HTML shell file

The first thing we need to do is add some new inputs into the HTML shell file. We are going to copy the basic_particle_shell.html file to a new shell file that we will call advanced_particle_shell.html. We will be adding a second container class div element and a lot of new inputs to the HTML portion of the shell file between the original container and the canvas element. Here is what that new container element looks like:

<div class="container">
<div class="empty_box">&nbsp;</div><br/>
<span class="label">min start scale:</span>
<input type="number" id="min_starting_scale" max="9.9" min="0.1" step="0.1" value="1.0" class="em_input"><br/>
<span class="label">max start scale:</span&gt...