/*@font-face {
  font-family: "Computer Modern";
  src: url('http://mirrors.ctan.org/fonts/cm-unicode/fonts/otf/cmunss.otf');
}
@font-face {
  font-family: "Computer Modern";
  src: url('http://mirrors.ctan.org/fonts/cm-unicode/fonts/otf/cmunsx.otf');
  font-weight: bold;
}
@font-face {
  font-family: "Computer Modern";
  src: url('http://mirrors.ctan.org/fonts/cm-unicode/fonts/otf/cmunsi.otf');
  font-style: italic, oblique;
}
@font-face {
  font-family: "Computer Modern";
  src: url('http://mirrors.ctan.org/fonts/cm-unicode/fonts/otf/cmunbxo.otf');
  font-weight: bold;
  font-style: italic, oblique;
}*/

@media only screen 
  and (min-device-width: 320px) 
  and (max-device-width: 568px)
  and (-webkit-min-device-pixel-ratio: 2) {
   nav {
      font-size: 10px;
   }
}

body {
   font: 14px Verdana, sans-serif;
   text-align: justify;
}

header {
   text-align: center;
   width: 100%;
   color: rgb(200,200,200);
}

nav {
   text-align: center;
   width: 100%;
}

.navbar {
    white-space: normal;
    padding-top: 10px;
    padding-bottom: 10px;
   padding-left: 20px;
   padding-right: 20px;
   position: static;
   overflow: hidden;
   font: 20px Verdana, sans-serif;
}

.navbar a {
    padding-left: 15px;
    padding-right: 15px;
    text-decoration: none;
    text-align: center;
    color: rgb(120,120,120);
}

.dropdown {
    overflow: hidden;
    position: relative;
    display: inline;
}

.dropdown-content {
  display: none;
  position: absolute;
  left: -20px;
  right: -20px;
  background-color: rgb(200,200,200);
  min-width: 115px;
  z-index: 1;
  padding-bottom: 5px;
}

.dropdown-content a {
  padding: 15px 0px 5px 0px;
  text-decoration: none;
  display: block;
  text-align: center;
  text-justify: inter-word;
}

.dropdown:hover .dropdown-content {
    display: block;
}

iframe {
   display: block;
   height: 100%;
   width: 100%;
   background-color: transparent;
   border: 0px none transparent;
   padding: 0px;
   scroll-behavior: smooth;
}

.content {
   margin: auto;
   margin-top: 30px;
   margin-bottom: 30px;
   width: 80%;
   max-width: 800px;
   scroll-behavior: smooth;
   line-height: 1.5;
}

.lectures td {
    min-width: 200px;
}

h2 {
    text-align: center;
}

h3 {
    text-align: center;
}


h4 {
    text-align: left;
}

#whole {
   margin: auto;
   margin-top: 30px;
   margin-bottom: 30px;
   width: 80%;
}

footer {
   display: block;
   text-align: left;
   padding-bottom: 1px;
   margin: 0px;
   background-color: rgb(200, 200, 200);
}