body{
  margin:0;
  padding: 0;
  color: #4d4e53;
  font-family: 'Open Sans', Arial, sans-serif;
    line-height: 1.5;
}

*, ::before, ::after{
  box-sizing: border-box;
}
.main-div {
  
  overflow: auto;
  display: grid;
  grid-template-rows: 46px ;
  grid-template-columns: 265px auto;
  
  grid-template-areas:
    "title ."
    "nav main-doc";
  border: solid 1px black;
  
}

#navbar {
  grid-area: nav;
  overflow: auto;
  border-right: rgba(0, 22, 22, 0.4) solid ;

  
}
#main-doc {
  grid-area: main-doc;
}
.title {
  position: fixed;
  grid-area: title ;
  grid-column: 1/3;
  background: #bbb;
  border: solid black 1px;
  text-align:center;
  font-size: 30px;
  color: black;
  width: 100%;
  z-index:3;
}

/* .title:before {
  content: "";
  position:absolute;
    top:0;
  left:0;
  background-color: black;
  height: 3px;
  width:100%;
} */
#navbar header{
  font-size: 20px;
  color: black;
  text-align:center;
  padding:10px;
  background: #ddd;
}
#navbar ol{
  padding: 0;
  margin:0;
}
#navbar ol li{
}
#navbar ol li a{
  color: #4d4e53;
  display: block;
  text-decoration:none;
  font-size: 20px;
  padding: 10px 30px;
  border-top: solid black 1px;
  margin: 0;
}
#main-doc {
  padding: 40px;
  font-size: 15px;
}
.main-section header {
  font-size: 30px;
  margin-left:-25px;
}




.code-block{
  display: block;
  text-align: left;
  white-space: pre-wrap;
  position: relative;
  word-break: normal;
  word-wrap: normal;
  line-height: 2;
  background-color: #eee;
  padding: 15px;
  margin: 10px;
  border-radius: 5px;
  border-left: solid 5px #8f34eb;
}

.code-inline {
  background: #eee;
  padding: 1px;
  border: dotted 1px #8f34eb;
}

.nav-link:hover {
  background: #dbdbdb;
}
nav {
    height: 100vh;
    overflow:auto;
  }

@media  only screen and (max-width: 815px) {
  .main-div {
  
  overflow: auto;
  display: grid;
  grid-template-rows: 1fr ;
  grid-template-columns: 1fr;
  
  grid-template-areas:
    "title"
    "nav"
    "main-doc";
  border: solid 1px black;
  
}
  .title {
    grid-area: title;
    position: static;
  }
  #navbar {
    grid-area: nav;
    height: 200px;
    border: solid black 1px;
    min-width: 290px;    
  }
  
  
  #main-doc {
    grid-area: main-doc;
  }

}
@media  only screen and (max-width: 350px) {
  .code-block, header {
    margin:0;
    padding:0;
  }
   .main-div {
    overflow-y: auto;
  }
}