.tabela-editor table {
  width: 100%;
  border-collapse: collapse;
}
.tabela-editor th, .tabela-editor td {
  border: 1px solid #ccc;
  padding: 8px;
  min-width: 100px;
  text-align: left;
}
.tabela-editor th[contenteditable],
.tabela-editor td[contenteditable] {
  background: #f9f9f9;
}
button {
  padding: 4px 8px;
  margin: 2px;
  cursor: pointer;
}
#add-row {
  margin-top: 10px;
}