* {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}
*:focus {
  outline: none;
}

/* nav */
.nav {
  background: #f8f8f8;
  color: #57585b;
  font-size: 14px;
  padding: 30px 20px 0;
  width: 325px;
  flex: 0 0 325px;
  z-index: 1;
}
.nav:after {
  content: "";
  height: 100px;
  display: block;
}
.nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav li {
  padding-bottom: 8px;
}
.nav-static {
  position: fixed;
  height: 100vh;
  overflow: auto;
}
/* mobile navigation */

/* nav */
.nav-mobile {
  box-shadow: 0px 10px 10px 0px rgba(0, 0, 0, 1);
  -webkit-transition: left 0.5s ease;
  -moz-transition: left 0.5s ease;
  -ms-transition: left 0.5s ease;
  -o-transition: left 0.5s ease;
  transition: left 0.5s ease;
  background: white;
  color: #57585b;
  font-size: 14px;
  height: 100vh;
  left: -250px;
  padding: 15px 15px 15px 20px;
  position: fixed;
  top: 40px;
  width: 250px;
  z-index: 10;
}
.nav-mobile:after{
  content: "";
  height: 100px;
  display: block;
}
.nav-mobile.expanded {
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  left: 0;
}
.nav-mobile ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-mobile li {
  padding-bottom: 15px;
}