header {
    color:#000000;
    width: 100%;
    height: 100px;   
    margin: auto;     
    border-bottom: 1px solid #d1d1d1;
    top: 0;
    left: 0;   
    z-index: 200;
       }

#btn-menu {
    display: none;
}

header label {    
    display: none;
    width: 70px;
    height: 70px;
    padding: 3px;
     float: right;
    cursor: pointer;  
}


.menu ul {
    margin: 2px;
    list-style: none;
    padding: 5px;
    display: flex;
}

.menu li {   
    border-right: 2px solid #fff;
}

.menu li:hover {
    background: rgba(100, 100, 100, 0.3);
}

.menu li a {
    display: block;
    padding:10px;
    color: #333;
    text-decoration: none;
    font-size: 0.9em;
    font-weight:bold;
    margin-top:10px;
   
   }
 
@media (max-width:800px) {

    header label {      
        display: block;
        margin:10px;       
        height: 2px;
    }
    .menu {
        position: absolute;
        background: #cdcdcd;
        font-family:bold;
        color: #fff;
        width: 190px;
        left: -280px;
        top: 100px;
        transition: all 0.3s;
        z-index: 200;
    }
    .menu ul {
        flex-direction: column;
    }

    .menu li {
        border-bottom: 1px solid #222222;
        border-right: 0px solid #333; 
        color: #222;     
    }

    .menu li:hover {
        background: #fff;
        color:#111;
    }

    header label:hover {
        float: right;
        cursor: pointer;
        background: rgba(0, 0, 0, 0.1);
    }

    #btn-menu:checked~.menu {
        top: 100px;
        left: 0;
    }
  

 }