#python, #go, #csharp, #ruby, #rust, #swift, #javascript {
  display: none;
}
body {
  background-color: rgb(125, 200, 243);
}
h1 {
  color: black;
  text-align: center;
  font-size: 70px;
}
h3 {
  color: #343a40;
}
img {
  max-width: 60%;
}
nav {
    background-color: #212529;
 }
 a {
   color: #999999;
 }
 a:hover {
   color: white;
 }
 .product-device {
  position: absolute;
  right: 10%;
  bottom: -30%;
  width: 300px;
  height: 540px;
  background-color: #333;
  border-radius: 21px;
  -webkit-transform: rotate(30deg);
  transform: rotate(30deg);
}
.product-device-2 {
  top: -25%;
  right: auto;
  bottom: 0;
  left: 5%;
  background-color: #e5e5e5;
}

 .product-device::before {
  position: absolute;
  top: 10%;
  right: 10px;
  bottom: 10%;
  left: 10px;
  content: "";
  background-color: rgba(255, 255, 255, .1);
  border-radius: 5px;
}
@media only screen and (max-width: 1050px) {
  .product-device, .product-device-2, .product-device::before, .box-shadow, .d-md-block {
    display: none !important;
  }
}