html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}
.button { border: none; color: white; padding: 10px 40px; text-decoration: none; font-size: 20px; margin: 1px; cursor: pointer; border-radius: 12px;}
.button_small { border: none; color: white; padding: 5px 2px; text-decoration: none; font-size: 15px; margin: 1px; cursor: pointer; border-radius: 10px;}
.green {background-color: #4CAF50;}
.red {background-color: #EC1B1B;}
.grey {background-color: #908A62;}
.button_head {color: black; background-color: white; font-size: 30px;}
.weight {font-size: 25px; font-family: Courier;}
.weightier {font-size: 30px; font-family: Courier;}
input {text-align: center;}
tr.separated td {
   /* set border style for separated rows */
   border-top: 1px solid black;
   font-size: small;
}
table {
    /* make the border continuous (without gaps between columns) */
    border-collapse: collapse;
}