.vv-table {
  text-align: left;
  position: relative;
  border-collapse: collapse; 
}
.vv-th, .vv-td {
  padding: 0.25rem;
}
.vv-th {
  background: white;
  position: sticky;
  top: 0; /* Don't forget this, required for the stickiness */
  box-shadow: 0 2px 2px -1px rgba(0, 0, 0, 0.4);
}