body {

    background-color: white;

}



h1 {

    color: black;

    margin-left: 0px;

}



input[type=number] {

    width: 32px;

}



input {

    border: 1px solid;

    margin-bottom: 3px;

}



span {

   

    display: block;

}



table, th, td {

  border-collapse: collapse;

}



th, td {

  padding: 0;

}



canvas#abacus_canvas {

    background: #fff!important;

}

.abacus{

    margin: 50px 0;

}

@media(max-width:767px){

  .abacus{

    margin: 10px 0;

}  

}
@media(max-width:768px){
   .logo-cs{
    width: 150px!important;
} 
}