#div_digg{
  position:fixed;
  bottom:5px;
  width:140px;
  right:30px;
  border:2px solid #085;
  padding:10px;
  background-color:#fff;
  opacity:0.3;
  border-radius:5px 5px 5px 5px !important;
  box-shadow:0 0 0 1px #5F5A4B, 1px 1px 6px 1px rgba(10, 10, 0, 0.5);
  transition-duration: 0.5s;
}
#div_digg:hover{
  opacity:1;
}
/*评论头像*/
.feedbackCon img {
border-radius: 30px;
-webkit-transition: all 0.6s ease-out;
-moz-transition: all 0.5s ease-out;
-ms-transition: all 0.5s ease-out;
-o-transition: all 0.5s ease-out;
transition: all 0.5s ease-out;
}
.backToTop {
     border: 1px dashed;
     display: none;
     width: 18px;
     line-height: 1.2;
     padding: 5px 0;
     background-color: #fff;
     color: #000;
     font-size: 12px;
     text-align: center;
     position: fixed;
     _position: absolute;
     right: 10px;
     bottom: 100px;
     _bottom: "auto";
     cursor: pointer;
     opacity: .6;
     filter: Alpha(opacity=60);
}