body的设置

body {
    font-family: "Helvetica Neue",Helvetica,Microsoft Yahei,Hiragino Sans GB,WenQuanYi Micro Hei,sans-serif;
    font-size: 14px;
}

.div{
color: #333; font: 18px/1.7 "Helvetica Neue",Helvetica,Arial,"Hiragino Sans GB","WenQuanYi Micro Hei","Microsoft YaHei",sans-serif; 
letter-spacing: 0.5px; 
text-align: justify;
 word-wrap: break-word;
}