@media only screen and (max-width: 991px) and (max-width: 1320px) {
  /* .section-4 .carousel {
    width: 50%;
  } */
  .top_sidebar{
  position: fixed;
  top: 0%;
  transform: translate(-50%);
  z-index: 1000;
  left:43%;
  }
}

@media only screen and (max-width: 990px) {
  header .navbar {
    background: rgba(0, 0, 0, 0.815);
  }
}

@media only screen and (max-width: 768px) {
  header .navbar-brand {
    padding-left: 1rem;
  }
  .section-1 .row .col-md-6 .panel {
    position: initial;
    width: initial;
    height: initial;
  }
  .img-box {
    padding-top: 100px;
  }
  .dh-img-box {
    padding-top: 0px;
    font-size: small;
  }
  .dhbtn {
    font-size: small;
  }
  .table-responsive-sm {
    font-size: small;
  }
  .section-2 .cover {
    background-position: -25vmin -10vmin;
  }
  .numbers .rect {
    width: 10rem;
    height: 8rem;
  }
  .numbers .rect h1 {
    font-size: 2rem;
  }

  .section-3 {
    height: inherit;
    padding: 10vmin !important;
  }
  .section-3 .row h1 {
    padding: 6vmin 4vmin;
  }
  .section-3 .platform .col-md-6 {
    text-align: center !important;
  }
  .section-3 .desktop i {
    font-size: 8vmin;
  }
  .section-4 .carousel-item {
    padding-left: 0.5rem;
  }
  footer .row .col-md-2 {
    margin-top: 8vmin;
  }
}
/* screen size 425px above */
@media only screen and (min-width: 425px) and (max-width: 767px) {
  iframe {
    width: 100%;
  }
  .table-responsive-sm {
    display: none;
  }
  .mainImg {
    display: none;
  }
}
/* screen size 425px */

@media only screen and (max-width: 700px) {
  .top_sidebar{
  display:none;
  }
}
/* screen size 375px */

@media only screen and (max-width: 375px) {
  .section-4 .card {
    width: 18em;
  }
  /*   .card-img-top .w-50{
  width: 65% !important;
} */
  iframe {
    width: 100%;
  }
  .table-responsive-sm {
    display: none;
  }
  .mainImg {
    display: none;
  }
  .top_sidebar{
  display:none;
  }
}

@media only screen and (max-width: 320px) {
  .section-4 .carousel-inner {
    margin-left: -4vmin;
  }
  /*   .card-img-top img{
  margin-top: -85px;
  height: 175px;
  border: 10px solid white;
}
.card-img-top .w-50{
  width: 65% !important;
} */
  iframe {
    width: 100%;
  }
  .table-responsive-sm {
    display: none;
  }
  /* .mainImg {
    width: 100%;
  } */
  .top_sidebar{
  display:none;
  }
}