Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.3.0.rc.5)
// Compass (v1.0.0.alpha.18)
// ----

@charset "utf-8";
/**
 * 对话框组件
 * @file： 样式组件： _chat-content.sass
 * @author: lanhong
 * @update: 2013年12月20日11点
 * @note:   聊天内容是一个组件，可以做成通用的
 * @doc:

  a. 访客是 visitor 客服是：worker
  <ul class="msg-content>
      <li class="msg-time" name="msg-time">
          <span class="person visitor">访客名称</span>时间
      </li>
      <li class="msg-worker">
          <p rel="chat-content" ng-bind-html="msg.msg">聊天的内容，你好，请问有什么可以帮您</p>
       </li>
   </ul>
 */
 @mixin triangle ($size, $color, $direction) {
  height: 0;
  width: 0;

  @if ($direction == up) or ($direction == down) or ($direction == right) or ($direction == left) {
    border-color: transparent;
    border-style: solid;
    border-width: $size / 2;

    @if $direction == up {
      border-bottom-color: $color;

    } @else if $direction == right {
      border-left-color:   $color;

    } @else if $direction == down {
      border-top-color:    $color;

    } @else if $direction == left {
      border-right-color:  $color;
    }
  }

  @else if ($direction == up-right) or ($direction == up-left) {
    border-top: $size solid $color;

    @if $direction == up-right {
      border-left:  $size solid transparent;

    } @else if $direction == up-left {
      border-right: $size solid transparent;
    }
  }

  @else if ($direction == down-right) or ($direction == down-left) {
    border-bottom: $size solid $color;

    @if $direction == down-right {
      border-left:  $size solid transparent;

    } @else if $direction == down-left {
      border-right: $size solid transparent;
    }
  }
}
$msgVisitorBorderColor:#d3e7fb;
$msgVisitorBgColor:#eef7fd;

$msgWorkerBorderColor:#d3e7fb;
$msgWorkerBgColor:#eef7fd;

$msgOtherBorderColor:$msgWorkerBorderColor;
$msgOtherBgColor:$msgWorkerBgColor;

$chatFontColor:#343434;
$fontSize:12px;

@mixin chatContentTriangle($person,$personBorderColor,$personBgColor){
  position:relative;

  border: 1px solid $personBorderColor;
  border-radius: 4px;

  // color: $workerFontColor !important;
  background-color: $personBgColor;
  @if ($person == visitor) or ($person == othor){
    &:before{
      @include triangle(12px,$personBgColor,up-left);
      position:absolute;
      z-index:23;
      top:10px;
      right:-10px;
    }
    &:after{
      @include triangle(12px,$personBorderColor,up-left);
      position:absolute;
      z-index:22;
      top:10px;
      right:-11px;
    }
  }
  @else if ($person == worker ){
    &:before{
      @include triangle(12px,$personBgColor,up-right);
      position:absolute;
      z-index:23;
      top:10px;
      right:-10px;
    }
    &:after{
      @include triangle(12px,$personBorderColor,up-right);
      position:absolute;
      z-index:22;
      top:10px;
      right:-11px;
    }
  }
}


.msg-content {
  margin-bottom: 10px;

  color: #666666;

  font-size: $fontSize;
  line-height: 1.5;

  // 设置聊天信息缩进 设置聊天信息为黑色
  p[rel="chat-content"] {
    padding: 7px 10px 10px 10px;

    white-space: pre-wrap;
    word-wrap: break-word;
    word-break: break-all;

    color: $chatFontColor;
    a:hover {
      text-decoration: underline;
    }
  }
  // 聊天信息 : 设置聊天信息缩进，设置客服、访客名称的颜色
  .person {
    margin-right: 10px;
  }

  &.visitor {
    //color: $visitorFontColor !important;

    p[rel='chat-content']{
      @include chatContentTriangle(visitor,$msgVisitorBorderColor,$msgVisitorBgColor);
    }
  }

  &.worker {

    p[rel='chat-content']{
      @include chatContentTriangle(worker,$msgVisitorBorderColor,$msgVisitorBgColor);
    }
  }

  &.other {
    p[rel='chat-content']{
      @include chatContentTriangle(other,$msgOtherBorderColor,$msgOtherBgColor);
    }
  }
}

SassMeister-output.css

@charset "UTF-8";
/**
 * 对话框组件
 * @file： 样式组件： _chat-content.sass
 * @author: lanhong
 * @update: 2013年12月20日11点
 * @note:   聊天内容是一个组件，可以做成通用的
 * @doc:

  a. 访客是 visitor 客服是：worker
  <ul class="msg-content>
      <li class="msg-time" name="msg-time">
          <span class="person visitor">访客名称</span>时间
      </li>
      <li class="msg-worker">
          <p rel="chat-content" ng-bind-html="msg.msg">聊天的内容，你好，请问有什么可以帮您</p>
       </li>
   </ul>
 */
.msg-content {
  margin-bottom: 10px;
  color: #666666;
  font-size: 12px;
  line-height: 1.5;
}
.msg-content p[rel="chat-content"] {
  padding: 7px 10px 10px 10px;
  white-space: pre-wrap;
  word-wrap: break-word;
  word-break: break-all;
  color: #343434;
}
.msg-content p[rel="chat-content"] a:hover {
  text-decoration: underline;
}
.msg-content .person {
  margin-right: 10px;
}
.msg-content.visitor p[rel='chat-content'] {
  position: relative;
  border: 1px solid #d3e7fb;
  border-radius: 4px;
  background-color: #eef7fd;
}
.msg-content.visitor p[rel='chat-content']:before {
  height: 0;
  width: 0;
  border-top: 12px solid #eef7fd;
  border-right: 12px solid transparent;
  position: absolute;
  z-index: 23;
  top: 10px;
  right: -10px;
}
.msg-content.visitor p[rel='chat-content']:after {
  height: 0;
  width: 0;
  border-top: 12px solid #d3e7fb;
  border-right: 12px solid transparent;
  position: absolute;
  z-index: 22;
  top: 10px;
  right: -11px;
}
.msg-content.worker p[rel='chat-content'] {
  position: relative;
  border: 1px solid #d3e7fb;
  border-radius: 4px;
  background-color: #eef7fd;
}
.msg-content.worker p[rel='chat-content']:before {
  height: 0;
  width: 0;
  border-top: 12px solid #eef7fd;
  border-left: 12px solid transparent;
  position: absolute;
  z-index: 23;
  top: 10px;
  right: -10px;
}
.msg-content.worker p[rel='chat-content']:after {
  height: 0;
  width: 0;
  border-top: 12px solid #d3e7fb;
  border-left: 12px solid transparent;
  position: absolute;
  z-index: 22;
  top: 10px;
  right: -11px;
}
.msg-content.other p[rel='chat-content'] {
  position: relative;
  border: 1px solid #d3e7fb;
  border-radius: 4px;
  background-color: #eef7fd;
}

使用sass编写的聊天冒泡框组件。