.main-wrapper {
  display: flex;
  flex-wrap: wrap;
  min-height: 100vh;
}

.main-wrapper > .header {
  width: 100%;
}

.main-wrapper .sidebar .menu {
  position: -webkit-sticky; /* Safari */
  position: sticky;
  top: 0;
}
.main-wrapper .sidebar {
  width: 13em;
  background-color: #388E3C;
  visibility: visible;
  opacity: 1;
  transition: visibility 0s, opacity 0.15s linear;
}
.main-wrapper .sidebar h3 {
  color: white;
  border-bottom: 1px solid #3b8235;
  padding: 1em 1em 0.4em;
  margin: 0.2em 0 0;
}
.main-wrapper .sidebar a {
  color: #C8E6C9;
  display: block;
  padding: 0.5em 1em;
}
.main-wrapper .sidebar a:hover {
  background-color: #4CAF50;
}
.main-wrapper .sidebar a.active {
  background-color: #1a6d13;
  /*color: #bcd400;*/
}

.main-wrapper .content {
  flex: 1;
  padding: 0.5em;
  box-shadow: 0 0 9px #545454;
  max-width: 100%;
  box-sizing: border-box;
}

.main-wrapper .content h1 {
  margin: 0.5em 0;
}

.main-wrapper > .menu {
  display: none;
}

@media only screen and (max-width: 768px) {
  .main-wrapper {
    flex-direction: column;
    flex-wrap: unset;
  }
  .main-wrapper > .menu {
    display: block;
    background-color: #3b8235;
    padding: 1em;
    color: white;
    font-weight: 600;
  }
  .main-wrapper .content {
    padding-bottom: 2em;
  }
  .main-wrapper .sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    z-index: 1;
  }
  .main-wrapper .sidebar.hide{
    visibility: hidden;
    opacity: 0;
    /*display: none !important;*/
  }
}