.section-about {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 6vw 5vw;
}

.intro-section {
  background: #f7f7f7;
}

.heading-1-about {
  text-transform: uppercase;
}

.sub-heading-about {
  font-family: "Montserrat", Arial, Helvetica, sans-serif;
  font-weight: 500;
}

@media only screen and (max-width: 768px) {
  .heading-1-about {
    margin-bottom: 6vw;
  }

  .main-nav {
    background: #f7f7f7;
  }

  .nav {
    background: rgb(255, 255, 255, 0.9);
  }

  .border-dark {
    width: 300px;
  }

  .sub-heading-about {
    padding: 2vw 4vw;
    font-size: 4vw;
  }

  .box-border-dark {
    margin-bottom: 15px;
  }

  .footer-split {
    color: #e1e1e1;
  }

  .footer-dark {
    background-color: #272a31;
    opacity: 0.9;
  }

  .display-none {
    display: none;
  }
}

@media only screen and (min-width: 768px) {
  .heading-1-about {
    margin: 60px 0 30px 0;
  }

  .section-about {
    padding: 0 2vw;
  }

  .box-border-dark {
    margin: 0 17vw 40px 17vw;
  }

  .para-1,
  .para-0 {
    padding: 0;
  }

  .email {
    margin-bottom: 40px;
  }

  .logo-section,
  .photos-section {
    padding: 40px;
  }

  .border-dark {
    width: 300px;
  }

  .footer-dark {
    background-color: #fff;
  }

  .footer-split {
    color: #272a31;
  }

  .dt-display-none {
    display: none;
  }

  .width-limited {
    width: 500px;
  }
}

.box-border-dark {
  padding: 10px 14px;
  background: #fff;
}

.border-dark {
  border: 1px solid #d3d3d3;
  margin-top: 5vw;
}

.logo-img {
  width: 60%;
  margin: 5px;
}

.para-2 {
  line-height: 17px;
}

.email {
  text-decoration: underline;
}

.logo-section {
  border-bottom: 1px solid #d3d3d3;
}

.img-group {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  margin: 18px 0;
}

.img-1 {
  background: url("src/imgs/2020.jpg");
}

.img-2 {
  background: url("src/imgs/2018.jpg");
}

.img {
  background-repeat: no-repeat;
  width: 280px;
  height: 150px;
  margin: 1vw;
  background-size: cover;
}

.img-sub {
  background: #ec5242;
  opacity: 0.8;
  background-size: cover;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.img-sub:hover,
.img-sub:focus {
  opacity: 0.5;
}