file.css

@media screen and (min-width: 768px) {
  .speakers h2 {
    display: flex;
    justify-content: center;
    padding-top: 20px;
    padding-bottom: 10px;
  }

  .programLine {
    width: 5%;
    margin-left: 48%;
  }

  .speakerLine {
    width: 10%;
  }

  .start {
    display: flex;
    height: auto;
    margin: 15px 15px 10px 15px;
    border-bottom: solid;
    border-color: rgb(240, 242, 245);
    border-width: 1px;
    padding-bottom: 35px;
    background: #fff;
  }

  .speakersContainer {
    padding: 50px 200px 50px 200px;
    display: grid;
    grid-template-columns: 0.5fr 0.5fr;
  }

  .speakerDescription {
    margin: 20px;
    font-family: "Lato", sans-serif;
  }

  .speakerDescription h3 {
    font-size: 20px;
    font-weight: 600;
    padding-bottom: 15px;
  }

  .speakerDescription h4 {
    padding-bottom: 15px;
    color: #ec5242;
    font-weight: 500;
    font-family: "Lato", sans-serif;
  }

  .description {
    padding-top: 20px;
  }

  .description a {
    color: #000;
    font-weight: 500;
    font-family: "Lato", sans-serif;
  }

  .moreLess {
    display: none;
  }
}

@media screen and (max-width: 768px) {
  .programLine {
    width: 10%;
  }

  .speakerLine {
    width: 10%;
  }

  .start {
    display: grid;
    grid-template-columns: auto auto;
    height: auto;
    background: #fff;
    margin: 10px;
    padding-bottom: 10px;
    border-bottom: solid;
    border-color: rgb(238, 242, 245);
  }

  .speakerDescription {
    margin: 10px;
  }

  .speakerDescription h3 {
    font-size: 20px;
    font-weight: 600;
    padding-bottom: 15px;
  }

  .speakerDescription h4 {
    padding-bottom: 15px;
    color: #ec5242;
    font-weight: 500;
    font-family: "Lato", sans-serif;
  }

  .description {
    padding-top: 20px;
  }

  .description a {
    color: #000;
    font-weight: 500;
    font-family: "Lato", sans-serif;
  }

  .moreLess {
    padding-top: 20px;
  }

  .btns {
    background-color: #fff;
    border: 2px solid rgb(204, 201, 201);
    display: flex;
    justify-content: center;
    width: 60vw;
  }

  .btns p {
    font-size: 17px;
    padding-top: 10px;
  }

  .btns img {
    width: 8%;
  }
}