.about-bg {
  position: relative;
  height: 70vh;
  width: 100%;
  background: url(../img/cyber-security/cyber-security-header.jpeg) center
    center no-repeat;
  background-size: cover;
  z-index: 1;
}
.about-bg::after {
  content: " ";
  position: absolute;
  z-index: -1;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background-color: rgba(0, 0, 0, 0.5);
}
.row li {
  list-style: disc;
  margin-bottom: 1em;
}
.content h4 {
  margin-bottom: 1.5em;
}