.postbody img { 

    max-width: 600px; 

    /* Resize the image for IE6 */ 

    width: expression(this.width > 600 ? 600: true); 

} 

/*FOCUS*/

.postbody img {

  -webkit-transition: all 1s ease;

     -moz-transition: all 1s ease;

       -o-transition: all 1s ease;

      -ms-transition: all 1s ease;

          transition: all 1s ease;

}

.postbody img:hover {

  border: 20px solid #000;

  border-radius: 30%;

}