.second::before {
  content: "";
  position: absolute;
  left: -10%;
  top: 100%;
  width: 120%;
  height: 600px;
  background-color: black;
  transform: rotate(10deg);
  z-index: 1;
}

.second::after {
  content: "";
  position: absolute;
  left: -10%;
  top: 60%;
  width: 120%;
  height: 430px;
  background-color: black;
  transform: rotate(10deg);
  z-index: 1;
}

@media (max-width: 768px) {
    .second, .mobile-color{
        color: #E1E1E1;
    }
}

@media (max-width: 767.98px) {
  .second .about-card {
    background-color: black;
  }
  .mobile-color {
    color: #E1E1E1 !important;
  }
}