*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

header h1{
    font-size: 1.5rem;
    padding: 1.25rem;
    text-align: center;
    font-size: 3rem;
    box-shadow: 0px 0.3125rem 0.625rem rgb(110, 110, 110);
}

header div{
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 1.875rem 1.25rem;    
}

.btn{
    padding: 0.625rem 1.25rem;
    background: none;
    border:1px solid black;
    outline: none;

}

.btn:hover{
    background-color: black;
    color: white;
    transition: .25s all;
}

#container{
    margin: auto;
    border-bottom: 0.0625rem solid black; 
    display: flex;
    justify-content: center;
    align-items: flex-end;
    gap: 0.625rem;
    padding: 1.875rem 1.875rem 0rem 1.875rem;
}

#container div{
    width: 2.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: black;
    color: white;
    font-size: .8rem;
}

.options label{
    padding: 0.5625 1.25rem;
    border: 0.0625rem solid black;
    display: flex;
    justify-content: space-around;
    align-items: center;
    gap: 0.9375rem;
}

@media screen and (max-width : 430px ){
    html{
        font-size: 12px;
    }

    #container{
        padding-top: 3.125rem;
    }
}