@charset "utf-8";
.navigation-bread {
  margin-top: 20px;
  overflow: hidden;
}
.navigation-bread span,
.navigation-bread a {
  font-size: 16px;
  color: #666666;
  display: block;
  line-height: 21px;
  float: left;
  margin-right: 5px;
}
.navigation-bread .navigation-cur {
  color: #c0130d;
  cursor: default;
}
.navigation-bread > a + a:before {
  content: "> ";
  color: #999999;
}
body {
  background-color: #F3F3F3;
}
.course-headlogo {
  width: 100%;
  height: 249px;
  background: url(../images/lecturebackground.jpg) no-repeat;
  background-position: top center;
}
.course-headlogo .return-link {
  float: right;
  margin: 45px 35px 0 0;
  width: 99px;
  height: 36px;
  background: url(../images/return_background.png) no-repeat;
}
.course-headlogo .return-link a {
  text-align: center;
  display: block;
  font-size: 18px;
  font-weight: bold;
  color: #BC0D12;
  line-height: 36px;
  letter-spacing: 2px;
}
.course-headlogo .return-link a i {
  display: inline-block;
  width: 8px;
  height: 14px;
  background: url(../images/retutn_arrow.png) no-repeat;
  vertical-align: -1px;
  margin-right: 7px;
}
.navigation-bread {
  padding-left: 30px;
}
.microlecture {
  margin-top: 16px;
}
.microlecture .microlecture-list {
  padding: 36px 0 0px 32px;
  background-color: #ffffff;
}
.microlecture .microlecture-list ul li {
  float: left;
  margin-right: 24px;
  margin-bottom: 54px;
}
.microlecture .microlecture-list ul li a {
  display: block;
}
.microlecture .microlecture-list ul li a:hover .microlecture-title p:before {
  display: inline-block;
}
.microlecture .microlecture-list ul li a:hover .microlecture-title p:after {
  display: inline-block;
}
.microlecture .microlecture-list ul li .img-top {
  width: 266px;
  height: 206px;
}
.microlecture .microlecture-list ul li .img-top img {
  width: 100%;
  height: 100%;
}
.microlecture .microlecture-list ul li .microlecture-title {
  width: 266px;
  height: 40px;
  background: url(../images/title_background.png) no-repeat;
}
.microlecture .microlecture-list ul li .microlecture-title p {
  position: relative;
  text-align: center;
}
.microlecture .microlecture-list ul li .microlecture-title p span {
  max-width: 100px;
  display: inline-block;
  font-size: 18px;
  font-weight: bold;
  color: #713400;
  line-height: 40px;
  letter-spacing: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.microlecture .microlecture-list ul li .microlecture-title p:before {
  content: "";
  position: absolute;
  width: 60px;
  height: 10px;
  background: url(../images/backtilte_left.png) no-repeat;
  left: 12px;
  top: 15px ;
  display: none;
}
.microlecture .microlecture-list ul li .microlecture-title p:after {
  content: "";
  position: absolute;
  width: 60px;
  height: 10px;
  background: url(../images/backtilte_right.png) no-repeat;
  right: 12px;
  top: 15px ;
  display: none;
}
.microlecture .microlecture-banner {
  margin-top: 23px;
  overflow: hidden;
}
.microlecture .microlecture-banner ul {
  width: 1215px;
}
.microlecture .microlecture-banner ul li {
  float: left;
  margin-right: 14px;
}
.microlecture .microlecture-banner ul li a {
  display: block;
}
.microlecture .microlecture-banner ul li a img {
  width: 593px;
  height: 133px;
  display: block;
  border: none;
}