.tabinput {
  margin: 0;
  display: inline-block;
  background-color: white;
  border: 1px inset;
  -webkit-appearance: textfield;
  white-space: nowrap;
  max-width: 100%;
}

.tabinput [contenteditable] {
  display: inline-block;
  border: none;
  box-shadow: none;
  outline: none;
  background-color: transparent;
  margin: 0;
  max-width: inherit;
  white-space: nowrap;
}