@media only screen and (max-width: 1240px) {
  /* Skill */
  .skill-container {
    flex-wrap: wrap;
  }
}

@media only screen and (max-width: 1024px) {
  .bac {
    margin-left: 10%;
  }

  .licence {
    margin-left: 26%;
  }

  .bts {
    margin-left: 44%;
  }

  .future {
    margin-left: 62%;
  }
}

@media only screen and (max-width: 850px) {
  /* Navigaiton menu */
  .nav-button {
    display: block;
  }
  #open_menu_section {
    display: none;
  }
  /* Career path */
  #career_path {
    height: 70vh;
  }

  .circle,
  .vertical-line,
  .career-line {
    display: none;
  }

  .licence .vertical-line {
    display: block;
    height: 900px;
    margin-top: 150px;
  }

  .licence,
  .bts,
  .master,
  .future {
    position: absolute;
    inset: 0;
    margin: auto;
  }

  .licence {
    top: -400px;
  }

  .date-licence {
    top: 110px;
    right: 80px;
  }

  .master {
    top: 175px;
  }

  .date-master {
    top: 110px;
    right: 80px;
  }

  .bts {
    top: 340px;
  }

  .future {
    top: 920px;
  }

  .date-down {
    top: -355px;
    right: 80px;
  }

  /* Production */
  #description_part {
    display: flex;
    flex-wrap: wrap;
  }
}
@media only screen and (max-width: 500px) {
  /* Presentation */
  #presentation {
    height: 120vh;
  }

  #presentation img {
    height: 50vh;
    right: 12vw;
  }

  #description {
    position: absolute;
    left: 1%;
    margin-top: 30vh;
    width: 100%;
  }

  /* Career path */
  /* Modal */
  .modal #option {
    display: flex;
    flex-wrap: wrap;
  }

  /* Pro exp */
  .flip-card {
    height: 910px;
    width: 100vw;
    margin: 50px auto 0px auto;
  }

  .exp-card-front img {
    width: 80vw;
  }

  .exp-card-back p,
  .exp-card-back h4,
  .exp-card-back li ul li {
    margin: 0px 30px 0px 30px;
  }

  .exp-card-back p,
  .exp-card-back h4,
  .exp-card-back li {
    font-size: 16px;
  }

  /* Footer */
  #contact img {
    margin: 180px 3vw 0 3vw;
  }
}

@media only screen and (max-width: 439px) {
  /* Footer */
  #contact img {
    margin: 180px 2vw 0 2vw;
  }
}