.about-greetings {
  font-size: 3rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

strong {
  font-size: 1.6rem;
  font-weight: 500;
}

.about-introduction,
.about-overall-experience,
.about-research-experience {
  text-align: justify;
  font-size: 1.8rem;
  font-weight: 300;
  line-height: 1.3;
  margin-bottom: 1rem;
}

.about-research-introduction {
  font-size: 2rem;
  font-weight: 400;
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

.about-research-interests li {
  font-size: 1.8rem;
  font-weight: 300;
  line-height: 1.3;
}

.about-contact-me {
  font-size: 1.8rem;
  font-weight: 300;
  line-height: 1.3;
  margin-top: 1rem;
}

@media (max-width: 920px) {
  main {
    display: flex;
    flex-direction: column;
  }

  .side-bar {
    width: 30rem;
    padding: 3rem;
    display: flex;
    flex-direction: column;
    margin: 0 auto;
  }

  .profile-links {
    display: flex;
    flex-direction: row;
    justify-content: center;
  }

  .profile-info {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .scroll-btn {
    display: none !important;
  }
}