content: import React from 'react';
  
  class IndexSection02 extends React.Component {
      render() {
          const css_tag_p = {
                  marginBottom: 20,
                  fontWeight  : 300, 
                  textAlign   : 'center'
              };
  
          return (
              <section id="main_content">
                  <p style = { css_tag_p }>
                      code less，do more
                  </p>
              </section>
          );
      };
  };
  
  export default IndexSection02;