.vl {
   color: rgb(15, 10, 10); 
   height: 100%;
   border-left: 1px;
  }

  .vr{
    color: white;
    border-left: 1px;
    border-color: black;
  }

.user_col{
    border: 2px;
    border-color: black;
    background-color: aqua;
}

button:disabled{
  background-color: transparent;
}