.c1{
    justify-content: center;
    align-items: center;
    display: flex;
    height: 100vh;
    overflow: hidden;
}
.box{
    padding: 20px;
    border: solid 2px #E70000;
    border-radius: 8px;
    box-shadow: rgba(17, 12, 46, 0.15) 0px 48px 100px 0px;
    width: 300px !important;
    box-shadow: rgba(0, 0, 0, 0.35) 0px 5px 15px;
}
#inch,#km{
    display: none;
}
body{
    background-color: #032540 !important;
}
.btn1{
    background-color: #ffffff   ;
    border: 1px solid #E70000;
}
.btn1:hover{
    background-color: #ffffff   ;
    border: 1px solid #E70000;
}
.btn2{
    background-color: #032540;
    color: #E70000;
    border: 1px solid #E70000;
}
.btn2:hover{
    background-color: #E70000;
    color: #ffffff;
    border: 1px solid #E70000;
}
.lc{
    color: #ffffff;
    font-weight: 600;
}
#result{
    color: #ffffff;
    justify-content: center;
    display: flex;
}
.km-btn, .inch-btn{
    display: none;
}