body {
  margin: 0;
  background-color: rgb(217, 217, 217);
}

.sidebar {

  width: 28%;
  background-color: rgb(74, 73, 70);
  position: fixed;
  height: 100%;
  overflow: auto;
}

.nav_content{


}
.nav_content ul{
  list-style-type: none;
  margin: 0;
  padding: 0;
}

.nav_content li a {
  padding-left: 10%;
  display: block;
  color: white;
  padding: 8px 16px;
  text-decoration: none;
}

.nav_content li a.active {
  background-color: white;
  color: rgb(88, 88, 88);
}

li a:hover:not(.active):not(.isix):not(.toggle_items){
  /*background-color: #555;*/
  color:grey;
  text-decoration: none;
}
li a.isix:hover{
  /*background-color: #555;*/
  color:black;
  text-decoration: none;
}


.nav_opt{

  background-color: rgb(74, 73, 70);

}

.toggle_items{
  background-color: grey;
}

li a.toggle_items:hover{
  color:black;
  text-decoration: none;
}

.schedule_lec_sch_table th, td {
  padding-left: 0.5%;
  padding-left: 1%;
  padding-top: 2%;
  padding-bottom: 3%;
  text-align: center;;
  table-layout: auto;
  min-width: 7%;
}

.major_content div{
  margin-top:30%;
  margin-bottom:30%;

}

#schedule_title{
  padding-top:9%;
}

img{
  height:auto;
  width:100%;
}

#main_info{

  background-color: white;
  margin-left:28%;
  margin-right:10%;
  padding:3%;
  padding-left:6%;
  padding-right:6%;
  height: 100%;

}

.header{
  padding-top: 5%;
  width:100%;
  background-color: rgb(170, 5, 5);
  height:25%;
  color: white;

}
.header h6{
  color: grey;
}
table, td, th {
  border: 1px solid #ddd;
  text-align: left;
  table-layout: auto;
}
table {
  border-collapse: collapse;
}

.code_block code {
  background-color: #eee;
  border: 1px solid #999;
  display: block;
}
.pre{
  background-color: #eee;
  border: 1px solid #999;
  display: block;
}

a.in_text:link {
  color: black;
  text-decoration: underline;
}


a.in_text:visited {
  color: black;
  text-decoration: underline;
}

a.in_text:hover {
  color: grey;
}


a.in_text:active{
  color: black;
  text-decoration: underline;
}