angle size

HTML

<script src="//cdnjs.cloudflare.com/ajax/libs/jsxgraph/0.97/jsxgraphcore.js"></script>
<link rel="stylesheet" href="http://jsxgraph.uni-bayreuth.de/distrib/jsxgraph.css">
<div id="box" style="width: 500px; height: 500px;"></div>

CSS

.fancy {
    font-face: sans-serif;
    color: green !important;
    border: 5px solid green !important;
    outline: 5px solid green !important;
    margin-top: -30px !important;
}

JavaScript

var board = JXG.JSXGraph.initBoard('box'),
    a = board.create('axis', [[0, 0], [1, 0]], 
    {ticks: 
    	{label: 
      	{fontSize: 20, cssClass: 'fancy'}
      }
    }),
    p = board.create('point', [2, 0], {
    snapToPoints: true, 
    attractorDistance: 10.0,
    attractorUnit: 'screen',
    	cssClass: 'fancy',
      elementCSS: 'fancy',
      class: 'fancy',
       highlightCssClass: 'fancy'
    });