*{margin: 0;padding: 0;}
body{background: #fff;margin: 0;}
.clearfix:after { content: ""; display: block; visibility: hidden; height: 0; clear: both; }
.clearfix { zoom: 1; }
.ellipsis{display:block;white-space:nowrap; overflow:hidden; text-overflow:ellipsis;}
.fl { float: left; }
.fr { float: right; }
.select-cons{margin-top: 20px;}
.prev-class,.test-name,.search-btn{display: inline-block;vertical-align: middle;position: relative;width: 126px;height: 30px;margin-left: 18px;}
.inp-text,.test-name-msg,.search-btn input{color: #7F7F7F;position: relative;text-indent: 10px;width: 100%;height: 100%;line-height: 30px;border: 1px solid #D8D8D8;cursor: pointer;border-radius: 4px;}
.inp-text:after{content: '';border-left: 5px solid transparent;border-right: 5px solid transparent;border-top: 8px solid #676767;position: absolute;right: 10px;bottom: 10px;}
.select-con{display: none;border: 1px solid #ccc;border-top: none;position: absolute;background: #fff;z-index: 10;width: 100%;text-indent: 10px;line-height: 28px;}
.select-con li {list-style: none;cursor: pointer;}
.select-con li:hover {background: #12B872;color: #fff;}

.test-name-msg{font-size: 15px;}
.search-btn input{font-size: 15px;border-radius: 4px;margin-top: 1px;text-indent: 0;border: none;background: #12B873;color: #fff;width: 60px;text-align: center;}
.history-teacher-exolaincase{margin-bottom:20px;text-indent: 10px;width: 100%;/* border-color: #fff; */border-left: 1px solid #E7E7E7;border-top: 1px solid #E7E7E7;font-size: 15px;margin-top: 10px;}
.hte-tables{margin: 18px;}
.hte-tables thead {background: #FAFAFA;}
.paper-title{width: 43%;}
.paper-class{width: 15%;}
.paper-status{width: 18%;}
.paper-opt{width: 24%;}
.history-teacher-exolaincase tr:nth-child(even){background:#FAFAFA}
.history-teacher-exolaincase td{padding: 6px 0;border-bottom: 1px solid #E7E7E7;border-right: 1px solid #E7E7E7;}

.download-img{width: 16px;height: auto;vertical-align: middle;cursor: pointer;}


/* 往期教师讲案按钮 */
.history-teacher-exolaincase-btn{cursor: pointer;background: #12B872;color: #fff;width: 160px;height: 40px;margin-left: 20px;text-indent: 10px;}
.history-teacher-exolaincase-btn img,.history-teacher-exolaincase-btn span{vertical-align: middle;line-height: 40px;color: #fff;}