old_contents: const h = require('virtual-dom/h');
  
  module.exports = function (data) {
    return h('form', {method: 'post', action: '/new-player/' + data}, [
      h('label', [
        'Enter your name:',
        h('input', {type: 'text', name: 'name'})
      ]),
      h('button', {type: 'submit'}, 'Join Game!')
    ]);
  };
  
new_contents: const h = require('virtual-dom/h');
  
  module.exports = function (data) {
    return h('div', {className: 'new-player'}, [
      h('form', {method: 'post', action: '/new-player/' + data}, [
        h('label', [
          'Enter your name:',
          h('input', {type: 'text', name: 'name'})
        ]),
        h('button', {type: 'submit'}, 'Join Game!')
      ])
    ]);
  };
  
subject: Add className to new-player view