less/thread.less
/* Main */
#ds-thread {
  clear : both;
  position: relative;
  overflow: visible;
  _zoom: 1;
}

#ds-thread #ds-reset {
  a {
    cursor: pointer;
    text-decoration: none;
    color: @link-color;
    //font-size: 12px;  //是否是链接与文字大小无关
    background-color: transparent;  //  for compatible
    &:hover {
      color: @link-hover-color;
    }
    .transition(color);
  }
  
  ul, 
  ul li {     //  for compatible
    background:none;
    margin: 0;
    padding: 0;
  }
  
  .ds-arrow {
    position: absolute;
    width: 0;
    height: 0;
    /* ie6 height fix */
    font-size: 0 !important;
    line-height: 0 !important;
     /* ie6 transparent fix */
    _border-right-color: pink !important;
    _border-left-color: pink !important;
    _filter: chroma(color=pink) !important;
  }

  .ds-arrow-down {
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid #fff;
  }
  
  button {
    cursor: pointer;
    margin: 0;      //  for compatible
    padding: 0;     //  for compatible
    border-radius : 0;  //  for compatible
  }
  
  /* Meta */
  .ds-meta {
    position : relative;
    padding: 8px 0;
    line-height: 24px;
    border-bottom: @border-shadow;
  }
  
  .ds-like-tooltip {
    position: absolute;
    z-index: 9999;
    .gradient2(#fcfcfc, #f9f9f9);
    border: @border-dark;
    box-shadow: 0 0 2px rgba(0,0,0,0.2);
    text-shadow: @text-shadow;
    font-size:@font-size-small;
    padding: 8px 14px;
    ul {
      width:84px;
      float:left;
    }
    li {
      line-height:16px;
      margin:6px 0;
    }
    p {
      clear:both;
      margin:6px 0;
    }
    .ds-like-tooltip-footer {
      text-align:right;
    }
  }
  
  a.ds-like-thread-button {
    color: @gray;
    padding: 4px 8px;
    border: @border-gray;
    border-bottom-color: #aaa;
    box-shadow: inset 0 0 1px #fff;
    margin-right:15px;
    text-shadow: @text-shadow;
    .gradient(#e0e0e0, #ffffff);
    .ds-icon-heart {
      position: relative;
      top: -2px;
      opacity: 1;
    }
    span {
      color: @gray;
    }
  }
  
  .ds-thread-cancel-like {
    display:none;
  }

  a.ds-thread-liked {
    background: #e9e9e9;
    
    &:hover{
      .ds-thread-cancel-like { 
        display:inline;
      }
      .ds-thread-like-text { 
        display:none;
      }
    }
  }
  
  /*  Hot Posts */
  #ds-hot-posts {
    border: @border-gray;
    overflow: hidden;
    margin: 8px 0;
    padding: 0;
    _height: 100%; // ie6 peekaboo bug fix
  }
  
  .ds-header {
    font-weight:bold;
    font-size:@font-size-large;
    color : @gray;
    line-height:30px;
    padding : 0 12px;
  }
  
  /* Toolbar */
  .ds-toolbar {
    position: relative;
    z-index: 5; // ie6 下拉菜单被盖住的bug fix
    font-size: @font-size-small;
    padding: 8px 0;
    width: 100%;
    clear: both;
  
    &:after {
      .clearfix();
    }
  }
  .ds-visitor {
    float:right;
    line-height:1.5em;
    margin-right:6px;
  }
  .ds-account-control {
    float:right;
    position:relative;
    /*position: absolute;
    right: 1px;
    top: 10px;*/
    //z-index: 99;
    font-size: @font-size-small;
    cursor: pointer;
    text-align: right;
    line-height: 18px;
    padding-bottom: 3px;
    width: 75px;
    span {
      display:block;
      float:left;
      color: @gray-lighter;
    }
    ul {
      display: none;
      position: absolute;
      top: 19px;
      left: 0px;
      border: @border-dark;
      background: @gray-background;
      box-shadow: inset 0 1px 1px #fff, 0 1px 1px rgba(0,0,0,.3);
      border-radius: @border-radius;
      text-align: center;
      li {
        a {
          border-top: 1px solid #fff;
          border-bottom: 1px solid #ddd;
          display: block;
          padding: 3px 10px;
          text-shadow: @text-shadow;
          &:hover {
            color: @gray;
          }
        }
      }
    }
    &.ds-active {
      span {
        color: @gray;
      }
      ul {
        display: block;
      }
    }
  }
  
  .ds-alert {
    margin: 0.5em 0;
    border: 1px solid #FBEED5;
    border-radius: @border-radius;
    padding: 6px 6px;
    color: #C09853;
    background-color: #FCF8E3;
    line-height: 1.5em;
  }
  
  .ds-login-buttons {
    width: 100%;
    position: relative;
    padding: 10px 0 6px;
    //border-top: @border-shadow;
    p {
      float: left;
      line-height: 24px;
      margin: 0;  //  for compatible :  div#main p
    }
    .ds-service-list li {
      float: left;
      height: 16px;
      width: 54px;
      padding:4px 0;
      margin: 0 0 0 6px;  //  for compatible
      //_margin-left:3px;
      //line-height: 16px;
    }
    .ds-more-services {
      color: @highlight !important;
      &:hover {
        color: lighten(@highlight, 15%) !important;
      }
      line-height:16px;
      display:block;
    }
    .ds-additional-services {
      display: none;
    }
    .ds-social-links{
      float:left;
      width:306px;  // ie6 有3px margin的bug
    }
    
    &:after {
      .clearfix();
    }
  }
  
  a.ds-unread-comments-count {
    display:none;
    background-color: @highlight;
    color: #FFFFFF !important;  // compatible;
      margin-right: 6px;
      padding: 1px 5px;
    font-weight:bold;
    .rounded(@border-radius-large);
    box-shadow: inset 0 1px 1px rgba(255,255,255,.4), 0 1px 1px rgba(0,0,0,.3);
    text-shadow: 0 1px 1px rgba(0, 0, 0, .3);
    &:hover {
      background: #f00;
    }
  }
  
  /* Reply Box */
  .ds-replybox {
    width: auto; // compatible  100%;
    font-size: @font-size-small;
    position: relative;
    z-index: 3;
    margin: 8px 0;
    padding: 0 0 0 60px;
    position:relative;
    _zoom:1;    // fix ie6 position padding bug
    &:after {
      .clearfix();
    }
    
    .ds-avatar {
      position : absolute;
      top: 0;
      left: 0;
      img {
        width: @avatar-size;
        height: @avatar-size;
        visibility:visible;   //  for compatible overwrite lazyloader
        margin: 0;
      }
    }
  }
  
  .ds-inline-replybox {  //  这种情况下，插入的位置一般已经留了padding，再额外增加下方的margin就没必要了
    margin: 8px 0 2px 0;
    padding-left:38px;
    .ds-avatar img{
      width: @avatar-small-size;
      height: @avatar-small-size;
      box-shadow: 0 1px 2px rgba(0,0,0,.22);
    }
  }

  .ds-textarea-wrapper {
    position: relative;
    //z-index: 1;
    border: @border-gray;
    border-bottom: none;
    padding-right: 20px;
    background: #ffffff url("@{images-url}bg_sprites.png") 0 -90px repeat-x;
    overflow: hidden;
    textarea {
      box-shadow: none;
      -webkit-appearance: none; //remove inner shadow on mobile webkit
      overflow: auto;
      padding: 10px;
      height: 54px;
      margin: 0;
      resize: none;
      color: @gray-lighter;
      width: 100%;
      &:focus {
        color: @gray-dark;
      }
    }
    .ds-hidden-text{
      word-wrap: break-word;
      visibility: hidden;
      position: absolute;
      top: 0;
      left:10px;
      right:10px;
      //z-index: -1;
    }
    textarea, .ds-hidden-text {
      display: block;
      font-family: @font-family-sans-serif;
      font-size: @font-size-base;
      line-height: 20px;
      border: none;
    }
  }
  .ds-post-toolbar {
    position: relative;
    //z-index: 4;
    width: 100%;
    span, input, label, a {
      vertical-align: middle;
      width:auto;
    }
    box-shadow: 0 1px 0 rgba(255,255,255, .6);
  }
  .ds-post-options {
    position: relative;
    margin-right: 100px;
    height: 30px;
    border: @border-gray;
    border-right: none;
    border-bottom-color: @dark-border-color;
    border-bottom-left-radius: @border-radius;
    -webkit-border-bottom-left-radius: @border-radius;
  }
  .ds-toolbar-buttons {
    position: absolute;
    top: 5px;
    left: 6px;
  }
  .ds-toolbar-button {
    display: block;
    width: 19px !important;
    height: 19px;
    float:left;
    margin-right:4px;
    .spritesheet();
    vertical-align: middle;
    opacity: 0.6;
    .transition(opacity);
    &:hover {
      opacity: 1;
    }
  }
  .ds-add-image {
    background-position: 0 -48px;
    &:hover {
      background-position: 0 -66px;
    }
    /*
    &:active {
      position: absolute;
      top: 8px;
    }*/
  }
  .ds-add-emote {
    background-position: 0 -12px;
    &:hover {
      background-position: 0 -30px;
    }
    /*
    &:active {
      position: absolute;
      top: 6px;
    }*/
  }
  
  .ds-sync {
    font-size:@font-size-small;
    color: @gray-lighter;
    line-height: 30px;
    position: absolute;
    right: 5px;
    label {
      color: @gray-light;
      cursor: pointer;
      .transition(color);
      &:hover {
        color: @gray;
      }
    }
    a.ds-service-icon, a.ds-service-icon-grey{
      margin: 7px 2px 7px 3px;
    }
  }
  .ds-post-button {
    font-family: @font-family-sans-serif;
    position: absolute;
    right: 0;
    top: 0;
    height: 32px; // box-sizing : border-box;
    width: 100px;
    text-align: center;
    text-shadow: @text-shadow;
    color: @gray;
    font-size: @font-size-large;
    font-weight: bold;
    border: @border-gray;
    border-bottom-color: @dark-border-color;
    border-bottom-right-radius: @border-radius;
    -webkit-border-bottom-right-radius: @border-radius;
    .gradient(#e6e6e6, #fcfcfc);
    .transition(all);
    box-shadow: inset 0 0 1px #fff;
    &:hover {
      background-position: 0 -15px;
      color: @gray-dark;
    }
    &:active {
      -webkit-box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15), 0 1px 2px rgba(0, 0, 0, 0.05);
      box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15), 0 1px 2px rgba(0, 0, 0, 0.05);
    }
  }
  
  /* disqus 模式的登陆
  .ds-auth-inline{
    margin-top:8px;
  }
  
  .ds-guest-form{
    float:left;
    padding:10px 0 6px 6px;
    border-left: @border-shadow;
    input{
      background: rgba(255,255,255,0.85);
      padding: 7px 8px;
      margin: 0;
      border-radius: @border-radius;
      border: 1px solid #c0c8d2;
      font-size: @font-size-base;
      height: 16px;
      line-height:normal;
    }
  }
  */
  /* Comments Info */
  
  .ds-comments-info {
    width: 100%;
    //z-index: 2;
    font-size: @font-size-base;
    margin-top : 10px;
    padding: 8px 0;
    //height: 30px;
    line-height: 25px;
    position:relative;
    //border-bottom: @border-shadow;
  }
  
  .ds-sort {
    //font-size: 12px;    //  原来是11px, 中文字体，小于12px在Windows里会出现锯齿
    position:absolute;
    right:0;
    top: 8px;
    
    a {
      color: @text-muted;
      padding: 0 4px; //  padding更大可以扩大可点击区域
      margin: 0 2px;  //  仍然保留一点间隙，以免被误点
      
      &:hover {
        color: @link-hover-color;
      }
      
      &.ds-current, 
      &:active {
        color: @highlight;
      }
    }
  }
  
  ul.ds-comments-tabs {
    .ds-highlight {
      margin: 0 2px 0 0;
    }
    .ds-service-icon{
      vertical-align: middle;
      margin: 0 2px 1px 0;
    }
  }
  
  li.ds-tab {
    display: inline;
    font-size: @font-size-base;
    margin: 0 5px 0 0;
    padding: 0;    //  for compatible
    a {
      text-shadow: @text-shadow;
      padding: 3px 5px;
      display: inline;
      .rounded(@border-radius-large);
      &.ds-current {
        border: @border-gray;
        background-color: rgba(0,0,0,.04);
      }
      &:hover {
        background-color: rgba(0,0,0,.04);
      }
    }
  }
  
  /* Comments */
  .ds-comments {
    width: 100%;    // clearfix
    //overflow:hidden;  // clearfix
    //z-index: 2;
    &:after {
      //  可能会导致后面的div掉下去
      //  http://hvfun.co.uk/2012/07/oyster-card-paranoid/
      .clearfix();
    }
    border-bottom: @border-shadow;
  }
  
  li.ds-post {
    width:100%;     // clearfix
    overflow:hidden;  // clearfix
    clear: both;
    //position: relative; post-self本身的relative的，所以就不需要它是relative了
    border-top: @border-shadow;
    margin:0;   //  for-compatible
    padding:0;    //  for-compatible
    list-style:none;//  for-compatible
  }
  
  li.ds-post-placeholder {
    text-align:center;
    color:@text-muted;
    padding:1em 0;
  }
  
  .ds-post-self {
    position: relative;
    padding: 10px;
    border-top: @border-highlight;
    &:after {
      .clearfix();
    }
    &:hover {
      .ds-post-delete, .ds-post-report {
        display: inline-block;
      }
    }
  }
  
  &.ds-touch .ds-post-self{
    .ds-post-delete, .ds-post-report {
      display: inline-block;
    }
  }

  .ds-comment-body {
    padding-left: 60px;
    p {
      font-size: @font-size-base;
      line-height: 1.5em;
      margin: .5em 0;
      word-wrap: break-word;
    }
    img {
      max-width:100%;
      vertical-align:text-bottom;
      box-shadow:none;
    }
    embed {
      max-width:100%;
    }
    code {
      display: block;
      font-size: @font-size-small;
      font-family: @font-family-monospace;
      padding: 8px 12px;
      background-color: #F0F0F0;
      margin: 8px 0;
      border-radius: @border-radius;
      border: 1px solid #DDD;
      color: #666;
    }
    a {
      color: @link-color;
      &:hover {
        color: @gray;
      }
    }
  }
  
  a.ds-comment-context {
    position: relative;
    margin: .5em 0;
    //font-size: @font-size-base; 不设置就跟p是一样的
    color: lighten(@highlight, 15%);
    &:hover {
      color: @highlight;
    }
  }

  #ds-bubble {
    //display: none;
    position: absolute;
    background-color: #fff;
    .rounded(@border-radius-large);
    padding: 10px;
    color: #333;
    border: @border-dark;
    box-shadow: 0 0 2px rgba(0,0,0,.2);
    z-index: 9999;
    font-size: @font-size-base;
    a {
      color: lighten(@highlight, 15%);
      &:hover {
        color: @highlight;
      }
    }
    p {
      line-height: 18px;
    }
    .ds-arrow-border {
      border-top-color: #aaa;
      bottom: -6px;
    }
    .ds-arrow {
      left: 32px;
      bottom: -5px;
    }
  }
  
  #ds-ctx-bubble {
    width: 300px;
    
    .ds-bubble-footer{
      padding: 6px 0 0 0;
      line-height:18px;
    }
  }

  #ds-user-card {
    width: 276px;
    min-height:@avatar-size;
    .ds-avatar {
      margin-right: 10px;
      img {
        width: @avatar-size;
        height: @avatar-size;
      }
    }
    .ds-user-name { 
      vertical-align:top;
      display:inline-block;
      max-width:8em;
      overflow:hidden;
      white-space:nowrap;
      text-overflow:ellipsis;
      font-size:@font-size-large;
    }
    .ds-user-card-meta { 
      margin:14px 0 0 62px; 
    }
    .ds-user-description {
      border-top:1px dotted #ddd;
      margin-top:0.5em;
      color:#aaa;
    }
    .ds-service-icon {
      margin-right: 3px;
    }
  }
  
  .ds-comment-header {
    padding-top: 1px;
  }
  
  .ds-comment-footer {
    line-height : 1.5em;
    span.ui-icon {
      //vertical-align: baseline;
    }
    a{
      margin: 0 6px 0 0;
      padding: 0 6px 0 0;
    }
  }
  .ds-comment-actions {
    a {
      font-size : @font-size-small;
      color: @text-muted;
      //vertical-align: top;
      
      .ds-icon{
        position: relative;
        top: -1px;
      }
    }
  }
  
  .ds-user-name {
    color: @gray-light;
    font-size: @font-size-base;
    margin-right: 8px;
  }
  
  .ds-post-likes {

  }
  
  .ds-post-liked .ds-icon-like {
    background-position: 0 -130px;
  }

  .ds-post-liked {
    a.ds-post-likes {
      color: @highlight;
    }
  }
  
  .ds-post-reply {
  }
  
  .ds-reply-active {
    display: block;
    .ds-post-reply {
      color: @gray-dark;
      .ds-icon {
        opacity: 1;
      }
    }
  }
  
  .ds-post-delete, 
  .ds-post-report {
    display: none;
  }
  
  .ds-icon-heart {
    width: 14px;
    height: 13px;
    background-position: 0 -130px;
  }
  
  .ds-icon-settings {
    width: 12px;
    height: 12px;
    margin: 3px 4px 0px;
    opacity: 1;
  }
  
  .ds-icon-like {
    width: 14px;
    height: 13px;
    background-position: 0 -117px;
  }
  
  .ds-icon-share {
    width: 18px;
    height: 13px;
    background-position: 0 -234px;
  }
  
  .ds-icon-reply {
    width: 18px;
    height: 13px;
    background-position: 0 -105px;
  }
  
  .ds-icon-delete {
    width: 13px;
    height: 13px;
    background-position: 0 -176px;
  }
  
  .ds-icon-report {
    width: 12px;
    height: 12px;
    background-position: 0 -189px;
  }
  
  .ds-time {
    font-size: @font-size-small;
    *font-size: 12px;   // ie6/7会把所有中文修正成12px，因此会出现字体大小不一样的问题。
    margin-right: 8px;
    color: @text-muted;
    _zoom:1;      //  ie6 hack 为了触发layout
  }
  
  /* Child Comments */
  /* 不再支持评论展开功能
  .ds-children-control {
    z-index: 99;
    position: absolute;
    display: inline-block;
    height: 20px;
    left: 0;
    top: -9px;
    .ds-collapse {
      //display: none;
      .ds-icon {
        width: 20px;
        height: 19px;
        background-position: 0 -85px;
      }
    }
    .ds-expand {
      display: none;
      .ds-icon {
        width: 20px;
        height: 20px;
        background-position: 0 -143px;
      }
    }
  }
  
  .ds-children-wrapper {
    position: relative;
    &.ds-collapsed {
      .ds-collapse {
        display: none;
      }
      .ds-expand {
        display: inline-block;
      }
      .ds-collapse-padding {
        display: block;
      }
      .ds-children {
        display: none;
      }
    }
  }
  
  .ds-collapse-padding {
    display: none;
    margin: 10px 0;
    height: 10px;
  }
  */
 
  ul.ds-children {
    margin-left: 38px;
    .ds-avatar {
      width: @avatar-small-size;
      height: @avatar-small-size;
      img {
        width: @avatar-small-size;
        height: @avatar-small-size;
      }
    }
    .ds-post-self {
      padding-left: 0;
    }
    .ds-comment-body {
      padding-left: 38px;
    }
  }
  
  /* Footer */
  /* 加载更多的按钮
  .ds-more {
    text-align: center;
    border-top: @border-shadow;
    text-shadow: 0 1px 1px rgba(255, 255, 255, 0.75);
    font-weight: bold;
    a {
      .gradient(#e6e6e6, #ffffff);
      .rounded(@border-radius);
      .transition(all);
      border: @border-dark;
      display: inline-block;
      font-size: 15px;
      padding: 8px 40px 7px;
      margin: 30px 0;
      &:hover {
        background-position: 0 -15px;
      }
      &:active {
        top: 0;
        -webkit-box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15), 0 1px 2px rgba(0, 0, 0, 0.05);
        box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15), 0 1px 2px rgba(0, 0, 0, 0.05);
      }
    }
    div {
      border-top: @border-highlight;
    }
  }
  */
 
  .ds-paginator {
    border-bottom: @border-shadow;
    text-align: right;
    padding-bottom: 15px;
    clear: both;
    line-height: 1em;
    div.ds-border {
      border-top: @border-highlight;
      margin-bottom: 15px;
    }
    a  {
      font-size:@font-size-small;
      margin: 0 3px;
      padding: 2px 5px;
      border: 1px solid transparent;

      &:hover, 
      &.ds-current {
        //font-weight: bold;
        .rounded(@border-radius);
        background-color: rgba(0, 0, 0, .03);
      }
      &.ds-current {
        color: @highlight;
        border: @border-gray;
        //font-size: 14px;
      }
    }
  }
  
  .ds-powered-by {
    font-size: @font-size-small;
    text-align: right;
    padding: 10px 0;
    a {
      color: @text-muted;
      text-decoration: none;  //  compatible

      &:hover {
        color: @gray;
      }
    }
  }
  
  /* IE fix */
  
  &.ds-no-transition { // ie 6/7/8/9 don't support transition
    .ds-post-button, 
    .ds-more a {
      background: url("@{images-url}bg_sprites.png") repeat-x !important;
      &:hover {
        background-position: 0 -30px !important;
      }
    }
    .ds-like-thread-button {
      background: url("@{images-url}bg_sprites.png") repeat-x;
    }
  }
  
  &.ds-no-opacity { // ie 6/7/8 don't support opacity and rgba
    li.ds-post{ // no alpha //.ds-more,
      border-top: 1px solid #ddd;
    }
    .ds-comments, .ds-paginator{
      border-bottom: 1px solid #ddd;
    }     
    .ds-post-self { // no alpha
      border-top: none;
    }
    .ds-tab a.ds-current {  // no alpha
      background: @gray-background;
    }
  }
  
  &.ds-ie6 { //IE6 specific
    .ds-post-report, 
    .ds-post-delete {
      display: inline !important;
    }
    .ds-textarea-wrapper {
      padding: 10px 10px;
      textarea {
        width: 95%;
        color: @gray-dark;
        padding: 0;
      }
    }
    /*
    a.ds-collapse {
      left: -25px;
    }*/
    .ds-post {
      width: 100%;
      float: left;
    }
    .ds-tab a.ds-current {
      padding-bottom: 5px;
    }
    #ds-ctx-bubble {
      .ds-arrow {
        bottom: -8px;
      }
      .ds-arrow-border {
        bottom: -9px;
      }
    }
  }
  
}


#ds-thread.ds-narrow #ds-reset{
  .ds-post-self {
    padding: 8px;
  }
  .ds-comment-body, 
  .ds-replybox {
    padding-left: 38px;
  }
  .ds-avatar img {
    width: @avatar-small-size;
    height: @avatar-small-size;
  }
  .ds-post-button {
    width: 70px;
  }  
  .ds-post-options {
    margin-right:70px;
  }
}

#ds-smilies-tooltip {
  border: @border-dark;
  position: absolute;
  width: 400px;
  background-color: #FFF;
  z-index: 9999;
  box-shadow: 0 0 2px rgba(0,0,0,.2);
  text-shadow: @text-shadow;
  .rounded(@border-radius);

  a {
    cursor:pointer;
  }
  ul {
    list-style-type: none;
    padding: 0;
    margin:0;
  }
  ul.ds-smilies-tabs {
    width:119px;
    position: absolute;
    top: 0;
    left: 0;
    height:159px;
    overflow-y:auto;
    background: @gray-background;
    border-right: @border-gray;
    border-top-left-radius: @border-radius;
    border-bottom-left-radius: @border-radius;
    li {
      a {
        color: @gray-lighter;
        padding: 6px 10px;
        display: block;
        border-bottom: @border-gray;
        .gradient2(#ffffff, #e9e9e9);
        font-size: @font-size-small;
        line-height: 1.3em;
      }
      &:first-child a {
        border-top-left-radius: @border-radius;
      }
      a.ds-current {
        color: #666;
        background: #e3e3e3;
        filter: none;
        box-shadow: inset 0 0 4px rgba(0,0,0,.1);
      }
    }
  }
  .ds-smilies-container{
    padding: 10px 5px;
    height:140px;
    margin-left: 125px;
    overflow-y:auto;
    li {
      list-style: none;
      float:left;
      width: 26px;
      height: 26px;
      text-align:center;
      cursor:pointer;
      img {
        visibility: visible;  //部分用户装了类似于lazyloader的js插件，给网页所有img都加了个visibility:hidden; see: http://www.10why.net/20080924/san-lu-nai-fen/
      }
      &:hover {
        position: relative;
        top: -1px;
      }
    }
  }
}
