nav{
  background:#2b479b;
  border-top:1px solid #999;
}
nav ul li a{
  color:#fff;
}
body{
  background:#f7f7f7;
}
.current{
    color: #333;
letter-spacing: 1px;
border-bottom: 1px solid #dbdbdb;
padding-bottom: 15px;
}
.current a {
    color: #333;
  }
.article {
    width: 1200px;
    margin: 30px auto;
    background: #fff;
    padding: 40px 60px;
    box-sizing: border-box;
    clear:both;
    overflow:hidden;
  }
  .article-title h1 {
    font-size: 28px;
    color: #333;
    text-align: center;
    font-weight: normal;
    margin-top: 60px;
    margin-bottom: 20px;
    letter-spacing: 2px;
  }
  .article-title h3 {
    font-size: 14px;
    color: #666;
    font-weight: normal;
    text-align: center;
    margin-bottom: 50px;
    letter-spacing: 1px;
  }
  .article-title h3 span {
    margin: 0 15px;
  }
  .article-content{
    font-size:16px;
    color:#333;
    line-height:180%;
  }
    .article-content img{
  	float:none;
  }
  .article-content p{
    /*margin-bottom:20px;*/
    float:left;
    width:100%;
  }