.sample {
  max-width: 750px;
  text-align: center;
  margin: 0 auto;

}

.sample p {
  display: inline-block;
  text-align: left;
}<style>
.example5{
    font-weight: bold;
}
</style>
ruby > rt {
  display: block;
  font-size: 50%;
  text-align: start;
}