.w100 {
  max-width: 100px;
}
.w200 {
  max-width: 200px;
}
.w300 {
  max-width: 300px;
}
.w400 {
  max-width: 400px;
}
.w500 {
  max-width: 500px;
}
.w600 {
  max-width: 600px;
}