flex with content no space

main.css

.container {
  width: 300px;
  display: flex;
  background-color: blue;
}

.fake-sidebar {
  flex: 0 0 100px;
  background-color: magenta;
}

.long-word {
  flex: 0 0 fill;
  background-color: yellow;
  margin-left: 10px;
  /* max-width: 100%; */
  min-width: 0;
  word-wrap: break-word;
}