.all{
  height: 5vh;
  position: relative;
  opacity: 1;
  z-index:  10000;
}

.navbar {
  background-color:#000;
  width: 100%;
  position: relative;
}

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

.navbar .menu-item {
  display: flex;
  float: right;
  font-size: 18px;
  position: absolute;
  right: 0px;
  top: 20px;
}

.navbar .menu-item a {
  display: inline-block;
  padding: 0 20px;
  text-decoration: none;
  color: #fff;
  font-size: 18px;
  transition: 0.6s;
}

.navbar .menu-item a:hover {
  color: lightslategray;
}

.navbar #check {
  display: none;
}

@media (max-width:800px) {
  .navbar .menu-btn {
    display: inline-block;
    position: absolute;
    right: 0px;
    top: 0px;
  }
  .navbar .menu-btn label {
    display: inline-block;
    width: 30px;
    height: 20px;
    padding: 13px;
    transition: 1s;
    border-radius: 6px;
  }
  .navbar .menu-btn label:hover,.navbar  #check:checked ~ .menu-btn label {
    background-color: lightslategray;
  }
  .navbar .menu-btn label span {
    display: block;
    width: 25px;
    height: 5px;
    border-top: 2px solid #eee;
  }
  .navbar .menu-item {
    position: absolute;
    display: block;
    width: 100%;
    background-color: lightslategray;
    opacity: 1;
    height: 0px;
    transition: all 0.3s ease-in;
    overflow-y: hidden;
    top: 50px;
    left: 0px;
    z-index: 2;
  }
  .navbar .menu-item a {
    display: block;
    width: 100%;
    text-align: center;
    font-size: 20px;
    padding: 10px;
  }
  .navbar #check:not(:checked) ~ .menu-item {
    height: 0px;
  }
  .navbar #check:checked ~ .menu-item {
    height: calc(44vh - 50px);
    overflow-y: auto;
  }
}

h1 {
  margin: 10px;
  font-size: 26px;
  color: #fff;
  font-weight: bold;
  text-align: center;
}
a{
  text-decoration: none;
}
span{
  font-weight: bold;
  color: lightslategray;
}


@media (max-width:800px) {
  .header p{
    padding: 0 20px;
  }
}
@media (max-width:500px) {