html,
body {
  min-width: 290px;
  color: #4d4e53;
  background-color: #ffffff;
  font-family: "Open Sans", Arial, sans-serif;
  line-height: 1.5;
}

#navbar {
  position: fixed;
  min-width: 290px;
  top: 0px;
  left: 0px;
  width: 300px;
  height: 100%;
  border-right: solid;
  border-color: rgba(0, 22, 22, 0.4);
}

header {
  color: black;
  margin: 10px;
  text-align: center;
  font-size: 1.8em;
  font-weight: thin;
}

#main-doc header {
  text-align: left;
  margin: 0px;
}

#navbar ul {
  height: 88%;
  padding: 0;
  overflow-y: auto;
  overflow-x: hidden;
}

#navbar li {
  color: #4d4e53;
  border-top: 1px solid;
  list-style: none;
  position: relative;
  width: 100%;
}

#navbar a {
  display: block;
  padding: 10px 30px;
  color: #4d4e53;
  text-decoration: none;
  cursor: pointer;
}

#main-doc {
  position: absolute;
  margin-left: 310px;
  padding: 20px;
  margin-bottom: 110px;
}

section article {
  color: #4d4e53;
  margin: 15px;
  font-size: 0.96em;
}

section li {
  margin: 15px 0px 0px 20px;
}

code {
  display: block;
  text-align: left;
  white-space: pre;
  position: relative;
  word-break: normal;
  word-wrap: normal;
  line-height: 2;
  background-color: #f7f7f7;
  padding: 15px;
  margin: 10px;
  border-radius: 5px;
}

.nav > .nav-btn {
  display: none;
}
.nav > #nav-check {
  display: none;
}


@media only screen and (max-width: 815px) {
  /* For mobile phones: */
  body{
    width: 100%;
    overflow-x: hidden;
    margin: 0;
  }
  #navbar ul {
    height:0px;
  }
  .mobile-small{
    font-size: 10px;
  }
  header{
    text-align: left;
  }
  #navbar {
    background-color: white;
    position: fixed;
    top: 0;
    padding: 0;
    margin: 0;
    width: 100%;
    max-height: 60px;
    border: none;
    z-index: 1;
    border-bottom: 2px solid;
  }
  code{
    font-size:14px;
  }
  #main-doc {
    position: relative;
    margin-left: 0px;
    padding-top: 60px;
    width: 90%;
  }



  .main-section{
    padding: 60px 0 0 0;
  }

  .nav > .nav-btn {
    display: inline-block;
    position: absolute;
    right: 0px;
    top: 0px;
  }
  #navbar a {
    color: #fff;
  }
  .nav > .nav-btn > label {
    display: inline-block;
    width: 50px;
    height: 50px;
    padding: 13px;
  }
  .nav > .nav-btn > label:hover,.nav  #nav-check:checked ~ .nav-btn > label {
    background-color: rgba(255, 255, 255, 0);
  }
  .nav > .nav-btn > label > span {
    display: block;
    width: 25px;
    height: 10px;
    border-top: 2px solid #000;
  }
  .nav > .nav-links {
    position: absolute;
    display: block;
    width: 100%;
    background-color: #333;
    height: 0px;
    transition: all 0.3s ease-in;
    overflow-y: hidden;
    top: 43px;
    color:#fff;
    left: 0px;
  }
  .nav > .nav-links > a {
    display: block;
    width: 100%;
  }
  .nav > #nav-check:not(:checked) ~ .nav-links {
    height: 0px;
  }
  .nav > #nav-check:checked ~ .nav-links {
    height: calc(100vh - 50px);
    overflow-y: auto;
  }
  .desctop{
    display: none;
  }
  .mobile{
    display: block;
  }
}