h1{
    display: inline-block;
    width: 150px;
    height: 80px;
   font-size: 120px;
   padding: 10px;
   margin: 10px;
color: black
font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;

}
.o{
    width: 90px;
    border: 1px solid;
    font-weight: bolder;
    margin: 30px;
    color: white;
    padding: 10px;
    height: 40px;
    border-radius: 90px;
    background-color: black;
    margin-top: 50px;
}
h2{
        display: inline-block;
        width: 50px;
        height: 50px;
    font-size: 20px;
    padding: 10px;
    margin: 10px;
    color: black;
    margin-left: 13px;
    margin-bottom: 30px;
    }

body{
    background-color: white;
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;

}

.a{
    width: 100%;
    padding: 10px;
   text-align: center;
    height: 500px;
    font-size: larger;
    margin-top: 10px;
     border: 2px solid black;
     background-color: white;
}
.b{
    width: 90px;
    border: 1px solid;
    font-weight: bolder;
    margin: 30px;
    color: white;
    padding: 10px;
    height: 40px;
    border-radius: 20px;
    background-color: black;
    margin-top: 50px;
}
.k{
    width: 190px;
    font-weight: bold;
    font-size: 20px;
    margin: 0px;
    padding: 0px;
    height: 40px;
    margin-top: 10px;
    
}
body{
    background-color: black;
}
.r
{ width: 100px;
    border: 2px solid;
    font-weight: bold;
    border-radius: 20px;
    margin: 30px;
    padding: 10px;
    height: 40px;
    border-radius: 10px;
    background-color: black;}


.b:hover{
    background-color:white;
    color: black

}
.w{
    margin-top: 80px;
}
.r{
    color: white;
    width: 300px;
    font-size: 40px;
    margin-top: 60px;
}
@media only screen and (max-width: 600px){
    h1{
        width: 80px;
        height: 40px;
        font-size: 80px;
    }
@media only screen and (max-width: 600px){
        .b{
            width: 80px;
            margin: 5px;
            margin-top: 40px;
               }    
        }
@media only screen and (max-width: 400px){
            .b{
                width: 80px;
                margin: 1px;
                margin-top: 40px;
                border-radius: 90px;
                
                   }    
            }
@media only screen and (max-width: 400px){
        h1{
            width: 60px;
            height: 40px;
           font-size: 70px;
        text-align: ;    }    
        }
    
@media only screen and (max-width: 600px){
            .r{
                width: 250px;
                font-size: 35px;
                padding: 5px;
                text-align: center;
            }    
            }
@media only screen and (max-width: 400px){
                .r{
                    width: 200px;
                    font-size: 28px;
                    padding: 10px;
                }    
                }
            

                @media only screen and (max-width: 600px){
                    .k{
                        width: 90px;
                        font-size: 18px;
                        padding: 10px;
                        margin: 10px;
                       
                    }    
                    }
                @media only screen and (max-width: 400px){
                    .k{
                        width: 70px;
                        font-size: 14px;
                        padding: 10px;
                        margin: 0px;
                       
                    }    
                    }