body {
  margin: 0;

}

a {
  color: rgb(87, 87, 87);
}

/* header */

.header {
  width: 100%;
  z-index: 3;
  height: auto;
  display: table;
  margin-left: 20px;
  margin-right: 20px;
  margin-top: 10px;
  font-size: 1.3em;
}

.header ul {
  margin: 15px;
  padding: 0;
  list-style: none;
  overflow: hidden;

}

.header li a {
  display: block;
  padding: 5px 10px;
  text-decoration: none;
  
}

.header li a:hover,
.header .menu-btn:hover {
background-color:rgb(87, 87, 87);
font-color:white;
}

.header .logo {
  display: block;
  float: left;
  font-size: 2em;
  padding: 10px 20px;
  text-decoration: none;
}

/* menu */

.header .menu {
  clear: both;
  max-height: 0;
  text-align: center;

  transition: max-height 1s cubic-bezier(0.4, 0, 0.2, 1),
}

/* menu icon */

.header .menu-icon {
  cursor: pointer;
  display: inline-block;
  float: right;
  padding: 28px 20px;
  position: relative;
  user-select: none;
}

.header .menu-icon .navicon {
  background: #333;
  display: block;
  height: 2px;
  position: relative;
  transition: background .2s ease-out;
  width: 18px;
}

.header .menu-icon .navicon:before,
.header .menu-icon .navicon:after {
  background: #333;
  content: '';
  display: block;
  height: 100%;
  position: absolute;
  transition: all .2s ease-out;
  width: 100%;
}

.header .menu-icon .navicon:before {
  top: 5px;
}

.header .menu-icon .navicon:after {
  top: -5px;
}

/* menu btn */

.header .menu-btn {
  display: none;
}

.header .menu-btn:checked ~ .menu {
  max-height: 80vh;
  opacity: 1;
}

.header .menu-btn:checked ~ .menu-icon .navicon {
  background: transparent;
}

.header .menu-btn:checked ~ .menu-icon .navicon:before {
  transform: rotate(-45deg);
}

.header .menu-btn:checked ~ .menu-icon .navicon:after {
  transform: rotate(45deg);
}

.header .menu-btn:checked ~ .menu-icon:not(.steps) .navicon:before,
.header .menu-btn:checked ~ .menu-icon:not(.steps) .navicon:after {
  top: 0;
}

/* 48em = 768px */

@media (min-width: 1000px) {
  .header li {
    float: left;
  }
  .header li a {
    padding: 5px 10px;
  }
  .header .menu {
    clear: none;
    float: right;
    max-height: none;
  }
  .header .menu-icon {
    display: none;
  }
}