void ChangeSize(GLsizei w, GLsizei h) {
      GLfloat aspectRatio;
      if (h == 0)
          h = 1;
      glViewport(0, 0, w, h);
      glMatrixMode(GL_PROJECTION);
      glLoadIdentity();
      aspectRatio = (GLfloat)w / (GLfloat)h;
      if (w <= h){
          windowWidth = 100;
          windowHeight = 100 / aspectRatio;
          glOrtho(-100.0,100.0,-windowHeight,windowHeight,1.0,-1.0);
      } else {
          windowWidth = 100 * aspectRatio;
          windowHeight = 100;
          glOrtho(-windowWidth,windowWidth,-100.0,100.0,1.0,-1.0);
      }
      glMatrixMode(GL_MODELVIEW);
      glLoadIdentity();
}

.codeMessage {
     background: none repeat scroll 0 0 #CCCCCC;
     color: #333333;
     font-size: 9px;
}