body {
    padding-top: 0px;
}

.nav-item {
    white-space: nowrap;
}

.no-border {
    border: 0;
    box-shadow: none;
}

.timetables_input {
    width: 25px;
    text-align: center;
}

.dropdown-menu li {
    position: relative;
  }
  
.dropdown-menu .dropdown-submenu {
    display: none;
    position: absolute;
    left: 100%;
    top: -7px;
}

.rotate90 {
    transform: rotateZ(-90deg);
    text-align: center;
    vertical-align: middle;
}

.dropdown-menu .dropdown-submenu-left {
    right: 100%;
    left: auto;
}

.dropdown-menu>li:hover>.dropdown-submenu {
    display: block;
}

.dropdown-menu-comment {
    font-size: small;
}

.inactiveLink {
    pointer-events: none;
 }

 .inline {
    display: flex;
    width: 100%;
 }

 .overlay {
    position: fixed;
    width: 100%;
    height: 100%;
    z-index: 1000;
    top: 40%;
    left: 0px;
    opacity: 0.5;
    filter: alpha(opacity=50);
    text-align: center;
    visibility: hidden;
 }

 .LoginForm {
    width: 400px;
    border: 1px solid gray;
    padding-top: 50px;
    padding-bottom: 50px;
    padding-left: 50px;
    padding-right: 50px;
 }

 .inline-content {
    display: flex;
    justify-content: center;
    align-items: center;
    border-bottom: 1px solid gray;
 }
 .inline-content div {
    padding: 15px;
    width: 100%;
    height: 100%;
 }

table {
    overflow-y: auto;
    height: 50vh;     /* !!!  HEIGHT MUST BE IN [ vh ] !!! */
}

thead th {
    background-color: white;
    position: sticky;
    top: 0;
}

/* Style the tab */
.tab {
    overflow: hidden;
    border: 1px solid #ccc;
    background-color: #f1f1f1;
  }
  
  /* Style the buttons that are used to open the tab content */
  .tab button {
    background-color: inherit;
    float: left;
    border: none;
    outline: none;
    cursor: pointer;
    padding: 14px 16px;
    transition: 0.3s;
  }
  
  /* Change background color of buttons on hover */
  .tab button:hover {
    background-color: #ddd;
  }
  
  /* Create an active/current tablink class */
  .tab button.active {
    background-color: #ccc;
  }
  
  /* Style the tab content */
  .tabcontent {
    display: none;
    padding: 6px 12px;
    border: 1px solid #ccc;
    border-top: none;
  }