ul {
    margin: 0;
    padding: 20px;
    margin-left: 10px;
   }

   
   *{
       font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    }

   nav{
       width: 100%;
       height: 60px;
       background-color: rgb(54, 54, 54);
       float: left;
   }
   ul li{
    list-style: none;
    float: left;
    height: 50px;
   }
   
   ul li a{
       text-decoration: none;
       padding: 0 20px;
       font-style:initial;
       color:whitesmoke ;
       font-size: large;
   }
   .menu > li > a:hover{
       border-bottom: 7px;
       border-bottom-style: solid;
       border-bottom-color: white  ;
       border-bottom-width: 2px;
       background-color: rgb(194, 196, 196);
       color: black;
       border-radius: 1cm;
       transition: all .5s;
   }
   
   .menu > li{
       display: inline-block;
       position: static;
   }
   
   body{
       background-color: rgb(194, 196, 196);
       background-image: url('./media/f1-22-4k-v3.jpg');
       background-repeat: no-repeat;
       background-size: cover;
       position: static;
       overflow-y: auto;
       overflow-x: hidden;
   }
   
   .background-image{
       height: 100%;
       float: left;
   }
   .Title{
       border-bottom: 7px;
       border-bottom-style: solid;
       border-bottom-color: white  ;
       border-bottom-width: 2px;
       background-color: rgb(194, 196, 196);
       color: black;
       border-radius: 1cm;
       transition: all .25s;
       
   }
   .Home{
       height: 300px;
       padding: 7px;
       margin: 50px;
   }
   .Topic{
       height: 300px;
       padding: 3px;
       margin: 50px;
       border-bottom: 7px;
       border-bottom-style: solid;
       border-bottom-color: white  ;
       border-bottom-width: 2px;
       background-color: rgb(194, 196, 196);
       color: black;
       border-radius: 1cm;
   }
   
   .About{
       height: 300px;
       padding: 7px;
       margin: 50px;
   }
   
   .Contact{
       height: 300px;
       padding: 7px ;
       margin: 50px;
   }
   
   .stair{
       position: absolute ;
       background: #333;
       width: 80%;
       visibility: hidden;
       opacity: 0;
       transition: opacity 1s;
       border-bottom-left-radius: 1cm;
       border-bottom-right-radius: 1cm;
       margin-top: 15px;
   }
   .stair li a{
       display: block;
       padding: 20px;
       color: #fff;
       text-decoration: none;
       height: 0px;
   }
   
   .menu li:hover .stair{
       display: block;
       visibility: visible;
       opacity: 2;
       float: left;
       z-index: 1;
       width: 150px;
   }
   .stair > li > a:hover{
       border-bottom: 1px;
       border-bottom-style: solid;
       border-bottom-color: white  ;
       border-bottom-width: 3px;
       transition: all .25s;
       display: block;
       z-index: 2;
       float: left;
       opacity: 1;
   }
   
   
   .logo{
       width: 40px;
   }
   .logo2{
       height: 10px;
   }
   .button{
    background:none;
    border: 7px;
    color: #fff;
    padding: 0px;
    font-size: large;
    margin-right: 50px;
    margin-left: 40px;
}
.button:hover{
    border-bottom: 7px;
    border-bottom-style: solid;
    border-bottom-color: white  ;
    border-bottom-width: 2px;
    background-color: rgb(194, 196, 196);
    color: black;
    border-radius: 1cm;
    transition: all .5s;
}
.h1{
    background-color: gray;
    float: left;
    border-radius: 1cm;
    margin-left: 400px;
    border-width: 3px;
    border-color: black;
    border-style: solid;
    width: 600px;
    margin-top: 50px;
    opacity: .85;
    padding: 7px;
}
.main{
    overflow-y: hidden;
    padding-bottom: 10px;
}
.footer{
    color: white;
    border: none;
    position: sticky;
    height: 80px;
    margin-top: 800px;
    margin-bottom: 0;
}
.instagram{
    height: 50px;
    margin-left: 500px;
}
.facebook{
    height: 50px;
    margin-left: 50px;
}
.twitter{
    height: 50px;
    margin-left: 50px;
}