.h20 {
  background-color: #f0f0f0;
}
.main_left {
  width: 680px;
  background-color: #fff;
}
.main_left .left_title {
  width: 100%;
  height: 54px;
  padding: 0 30px;
  border-bottom: 1px solid #edf3fa;
}
.main_left .left_title .left_span {
  font-size: 18px;
  color: #666;
  line-height: 54px;
  padding-left: 20px;
  background: url(images/file-unknown-fill.png) no-repeat left center;
}
.main_left .left_title .left_span1 {
  font-size: 18px;
  color: #666;
  line-height: 54px;
  padding-left: 20px;
  background: url(images/heart-fill.png) no-repeat left center;
}
.main_left .left_title .total_num {
  font-size: 14px;
  color: #999;
  line-height: 54px;
}
.main_left .left_title .total_num .num {
  color: #459df5;
}
.main_left .exam_cur {
  width: 100%;
  padding: 20px 30px 40px 30px;
}
.main_left .exam_cur .exam_title {
  font-size: 18px;
  color: #333;
  line-height: 36px;
  margin-bottom: 30px;
}
.main_left .exam_cur .exam_title h1 {
  font-size: 18px;
}
.main_left .exam_cur .exam_options {
}
.main_left .exam_cur .exam_options p{
  color: #333;
  font-size: 16px;
  margin-bottom: 20px;
  line-height:32px;
}
.main_left .answer_title {
  width: 100%;
  height: 40px;
  padding: 0 30px;
  background-color: #e9eef1;
}
.main_left .answer_title .answer_text {
  font-size: 18px;
  color: #666;
  line-height: 40px;
  padding-left: 20px;
  background: url(images/securityscan-fill.png) no-repeat left center;
}
.main_left .answer_content,.main_left .answer_extended{
  padding: 22px 30px 20px 30px;
  line-height: 32px;
  font-size: 16px;
}
.main_left .answer_content p{
  margin-bottom:20px;
}
.main_left .answer_extended p{
  margin-bottom:6px;
}
.main_left .answer_content .right_key {
  color: #333;
  font-size: 16px;
  margin-bottom: 4px;
  line-height: 32px;
}
.main_left .answer_content .key_text {
  color: #666;
  font-size: 16px;
  line-height: 32px;
}
.main_left .left_content {
  width: 100%;
  padding: 0px 30px 0 30px;
}
.main_left .left_content ul li {
  width: 100%;
  padding-top: 20px;
  padding-bottom: 30px;
  border-bottom: 1px solid #e9edf0;
}
.main_left .left_content ul li .exam {
  width: 100%;
}
.main_left .left_content ul li .exam .exam_title {
  font-size: 18px;
  color: #333;
  line-height: 36px;
}
.main_left .left_content ul li .exam .exam_options {
  color: #333;
  font-size: 16px;
  margin-bottom: 20px;
}
.main_left .left_content ul li .exam .exam_options .options {
  margin-bottom: 20px;
}
.main_left .left_content ul li .exam .exam_resovle {
  display: inline-block;
  width: 140px;
  height: 42px;
  margin-top: 25px;
  margin-right: 30px;
  background-color: #459df5;
  border-radius: 2px;
  font-size: 16px;
  color: #fff;
  text-align: center;
  line-height: 42px;
}
.main_left .left_content ul li .exam .exam_resovle:hover {
  background-color: #5da9f5;
}
.main_left .left_content ul li .exam .exam_more {
  display: inline-block;
  width: 140px;
  height: 42px;
  margin-top: 25px;
  background-color: #e5f2ff;
  border-radius: 2px;
  font-size: 16px;
  color: #459df5;
  text-align: center;
  line-height: 42px;
}
.main_left .left_content ul .mb0 {
  border-bottom: none;
}
.main_right {
  width: 300px;
  background-color: #fff;
}
.main_right .right_con {
  width: 300px;
  background-color: #fff;
}
.main_right .right_title {
  width: 100%;
  height: 54px;
  padding: 0 26px 0 30px;
  border-bottom: 1px solid #edf3fa;
}
.main_right .right_title .right_span {
  font-size: 18px;
  color: #666;
  line-height: 54px;
  padding-left: 20px;
  background: url(images/detail-fill.png) no-repeat left center;
}
.main_right .right_content {
  width: 100%;
  padding: 21px 26px 0 30px;
}
.main_right .right_content ul li {
  position: relative;
  padding-left: 20px;
  padding-bottom: 30px;
  margin-bottom: 21px;
  border-bottom: 1px solid #edf3fa;
}
.main_right .right_content ul li .li_icon {
  position: absolute;
  top: 9px;
  left: 0;
  width: 6px;
  height: 6px;
  background-color: #459df5;
  border-radius: 50%;
}
.main_right .right_content ul li .li_a {
  display: inline-block;
  max-height: 50px;
  overflow: hidden;
  color: #333;
  font-size: 14px;
  line-height: 28px;
  word-wrap: break-word;
  word-break: break-all;
}
.main_right .right_content ul li:hover .li_a {
  color: #459df5;
  text-decoration: underline;
}
.main_right .right_content ul .mb0 {
  border-bottom: none;
  margin-bottom: 0;
}