Vulcan/packages/telescope-theme-base/lib/client/scss/specific/_mobile_nav.scss

$mobile-nav-width: 200px;

.mobile-only{
  @include medium-large{
    display: none !important;
  }
}
.desktop-only{
  @include small{
    display: none !important;
  }
}

.mobile-nav{
  position:fixed;
  overflow:auto;
  height: 100%;
  top: 0px;
  bottom: 0px;
  background:#444;
  color:white;
  box-shadow: inset -3px 0px 7px black(0.5);
  z-index: 100;

  left: -$mobile-nav-width;
  left: calc((100% - 60px) * -1);
  width: $mobile-nav-width;
  width: calc(100% - 60px);
  .menu-top-level{
    cursor: pointer;
    font-weight: bold;
    &:after{
      display:inline-block;
      position:relative;
      top:-1px;
      margin-left:4px;
      content:"▼";
      font-size:8px;
    }
  }
  .header-submodule.menu{
    display: block;
  }
  .menu-contents li{
    margin: 0;
  }
}

.mobile-nav, .inner-wrapper{
  transition: all, 300ms, ease-out, 0ms;
}

.inner-wrapper{
  position: relative;
  left: 0px;
}

.mobile-nav-open{
  overflow: hidden;
  .mobile-nav{
    left:0px;
  }
  .outer-wrapper{
    overflow:hidden;
    .inner-wrapper{
      left:$mobile-nav-width;
      left: calc(100% - 60px);
    }
  }
}




.desktop-nav{
  @include small{
    display: none;
  }
}

.mobile-menu{
  .header-module, .header-submodule{
    display: block;
    margin-right: 0px;
  }
  .mobile-menu-item{
    margin-bottom: 0;
    border-bottom:1px white(0.2) solid;
    &:last-child{
      border:none;
    }
  }
  .menu-description{
    display: none;
  }
  .sign-in{
    border-bottom:1px white(0.2) solid;
    margin-right: 0px;
  }
  a{
    display: block;
    height: auto;
    line-height: inherit;
    font-size: 15px;
    &, &:link, &:visited{
      color: white;
    }
  }
  .menu{
    >a{
      &:after{
        display:inline-block;
        position:relative;
        top:-1px;
        margin-left:4px;
        content:"▼";
        font-size:8px;
      }
    }
  }
  .header-submodule>a, .menu-top-level, .sign-in, .sign-up{
    padding: 10px;
  }
  .menu-menu{
    display: none;
    background: #333;
    li{
      padding: 10px;
      margin-bottom: 0;
      border-top:1px white(0.2) solid;
    }
  }
  .submit{
    margin: 10px;
  }
}

.mobile-submit{
  padding: 10px;
  border-bottom:1px white(0.2) solid;
  .button{
    max-width: none;
  }
}