怎么样强制换行与图片自适应大小?

怎么样强制换行与图片自适应大小?

图片自适应大小:
<a href='1.jpg' target='_blank'><img src='1.jpg' id='pic_7094' name='pic_7094' border='0' onload="javascript:if(this.width>300){this.width=300}if(this.height>300){this.height=300}"></a>

强制换行:
style="line-height: 16pt;word-wrap: break-word;word-break:break-all"