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



}

body{
    width: 100;
}

#object{
    position: absolute;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: tomato;
    top: calc(50% - 25px );
    left: calc(50% - 25px );
}

#btn_ctn{
margin: 10px;
width: 150px;
height: 150px;
/*
display: flex;
flex-wrap: wrap;
 */
display: grid;
grid-template-rows: 1fr 1fr 1fr;
grid-template-columns: 1fr 1fr 1fr;
}
/*
.action, #setup_ctn{
    width: 50px;
    height: 50px;

}
    */

#setup_ctn input{
    width :50px;
    height :25px;
}