.header{
    height:100px;

    padding:0 20px;
    color:#333;
}
.logo{
    line-height: 100px;
    float:left;
    text-transform: uppercase;
}
ul li{
    list-style-type:none;
    display:inline-block;
}
.menu{
float:right;}
.menu a{
    color:#333;
   
    text-decoration: none;
   /* padding: 0 10px;*/
    transition: 0.4s;
   
}
.show-menu-btn,.hide-menu-btn{
    transition: 0.4s;
    font-size:30px;
    cursor:pointer;
    display:none;
}
.show-menu-btn{
    float:right;
}
.show-menu-btn i{
    line-height:100px;
}
.menu a:hover,
.show-menu-btn:hover,
.hide-menu-btn:hover{
    color:#ffcd1a;
}
#chk{
    position:absolute;
    visibility: hidden;
    z-index:-1111;
} 
/*****  les media queries****/
@media screen and (max-width:800px) {
.show-menu-btn,.hide-menu-btn{
    display:block;
}
.menu{
    position:fixed;
    width: 100%;
    height:100vh;
    background:#333;
    right:-100%;
    top:0;
    text-align: center;
    padding:80px 0px;
    line-height: normal;
    transition:0.7s;
}
.menu li {
    display:block;
    padding:20px;
}
.menu li a,.menu i{
color:#fff;}
.hide-menu-btn{
    position:absolute;
    top:40px;
    right:40px;
}
#chk:checked~ .menu{
    right:0;
}

}