#c{
   position: fixed; 
   top:0; 
   left: 0; 
   z-index:-1; 
   opacity:0.8;
}
* {
    margin: 0;
    padding: 0;
    border: 0;
}
#div_digg1 {
    padding: 5px;
    position: fixed;
    _position: absolute;
    z-index: 1000;
    bottom: 5%;
    left: 3.5%;
    _left: 15px;
    border: 0;
}

@media screen and (max-width: 768px){
    #main, #mainContent{
        width: 100%;
    }
    #sideBar, body > a, #navList, #navigator, .postDesc a, #homepage_top_pager{
        display: none;
    }
    #blogTitle a{
        font-size: 30px;
    }
    #blogTitle h2{
        font-size: 16px;
    }
    #header{
        height: 180px;
    }
    #home{
        background-image: none;
    }
    .postTitle a{
        font-size: 22px;
    }
    .postCon, .postCon a{
        font-size: 16px;
    }
    .day{
        margin: 0 2%;
    }
    .postCon a{
        padding-left: 0;
    }
    .postDesc{
        width: 100%;
        font-size: 12px;
    }
    #home{
        background-color: #68BCCA;
    }
    #mainContent .forFlow{
        margin: 4px 0 0 0;
    }
    .postBody{
        
    }
    #blogTitle{
        left: 0;
    }
    #mainContent .postBody{
        width: 100%;
    }
    .post{
        padding: 0 4%;
    }
    #header{
        background: url(https://images.cnblogs.com/cnblogs_com/lvdabao/507840/o_face-monkey-128.png) top right no-repeat;
        background-size: 46px;
    }
    .topicListFooter{
        width: 100%;
        text-align: center;
        padding: 0;
        height: 40px;
    }
    .topicListFooter a:link{
        font-size: 12px;
    }
    
    div.headerText{
    hight:46px;
    width:100px;
}
}