body{
  background-color: white;
  font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
  background-image: url(https://images-na.ssl-images-amazon.com/images/I/C1qmG3fnRpS.png);
  backdrop-filter: blur(6px);
  backdrop-filter: brightness(-100px);
  background-size:50% !important; 
  }

.box-shadow {
    box-shadow: 0px 0px 18px -3px rgba(143, 143, 143, 0.5);
  }
  
  .card:hover {
    box-shadow: 0px 0px 20px -3px rgba(143, 143, 143, 0.75);
  }
  
  .box-shadow-dark {
    box-shadow: 3px 3px 11px -3px rgba(0, 0, 0, 0.25);
  }

  
  section {
    padding-top: 2rem;
    padding-bottom: 2rem;
  }
  
  h6 {
    color: #990000;
  }
  
  .font-weight-bolder {
    font-weight: 900;
  }
  
  .display-1,
  .display-2,
  .display-3,
  .display-4 {
    font-weight: 900;
  }
  
  .heading-big {
    font-weight: 600;
    text-transform: uppercase;
    color: black;
    margin: 0;
    padding: 0.15rem 0;
    line-height: 1.2;
    font-size: 2rem;
    -webkit-transition: color 0.5s ease-in, border-color 0.5s ease-in-out;
    transition: color 0.5s ease-in, border-color 0.5s ease-in-out;
  }


  .heading-big-square {
    padding: 1rem 1rem;
    border: 10px solid black;
    margin: 0.5rem auto 1rem auto;
    width: 56%;
}
  .heading-big:hover {
    color: darkorange;
    border-color: darkorange;
  }
  
  .card {
    -webkit-transition: 0.5s ease;
    transition: 0.5s ease;
    border-radius: 0;
    -webkit-transform: perspective(3em) rotateX(0deg) rotateY(-1.175deg) rotateZ(-1deg);
            transform: perspective(3em) rotateX(0deg) rotateY(-1.175deg) rotateZ(-1deg);
  }
  .card-header {
    border-radius: 0;
  }
  .card-footer {
    padding-top: 1rem;
    padding-bottom: 1rem;
  }
  .card-header, .card-footer {
    -webkit-transition: 0.5s ease;
    transition: 0.5s ease;
  }
  .card:hover {
    border-color: #ffc107;
    -webkit-transform: perspective(0em) rotateX(0deg) rotateY(0deg) rotateZ(0deg);
            transform: perspective(0em) rotateX(0deg) rotateY(0deg) rotateZ(0deg);
  }
  .card:hover .card-header,
  .card:hover .card-footer {
    color: #ba8b00;
    border-color: #ffc107;
    background-color: #ffeeba;
  }
  .card:hover .promotion-promo {
    -webkit-transform: scale(1.175) translateY(2.5px);
            transform: scale(1.175) translateY(2.5px);
    -webkit-transform-origin: left center;
            transform-origin: left center;
  }
  .card:hover .promotion-price {
    -webkit-transform: translate(2.5px, 17.5px) scale(1.15);
            transform: translate(2.5px, 17.5px) scale(1.15);
    -webkit-transform-origin: center right;
            transform-origin: center right;
  }
  .card-body {
    position: relative;
    z-index: 0;
    overflow: hidden;
    padding-top: 2rem;
    padding-bottom: 2rem;
    padding-left: 0.3rem;
    padding-right: 0rem;
    letter-spacing: 0.2rem;
    font-size: 27px;
    background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
    animation: gradient 15s ease infinite;
    background-size: 400% 400%;
    text-decoration: none;
  }
  .card .btn {
    font-weight: bold;
    text-transform: uppercase;
  }
  
  
  .card-animate {
    counter-reset: section;
  }
  .card-animate .card-body:before {
    -webkit-transition: 0.5s ease;
    transition: 0.5s ease;
    counter-increment: section;
    content: "" counter(section) "";
    display: block;
    font-size: 15rem;
    font-weight: 900;
    position: absolute;
    bottom: 5rem;
    line-height: 0;
    left: -0.85rem;
    padding: 0;
    margin: 0;
    color: rgba(0, 0, 0, 0.1);
    z-index: 0;
  }
  .card-animate .card:hover .card-body:before {
    -webkit-transform: translate(10px, -10px);
            transform: translate(10px, -10px);
  }
  .card-animate .card-text {
    margin-top: 2rem;
    margin-bottom: 2rem;
  }
  .card-animate .card-title {
    font-weight: 400;
    text-transform: uppercase;
    color: white;
    font-family: monospace;
    font-size: 20px;
  }
  
   /* side names */
 #mySidenav a {
    position: absolute;
    left: -230px;
    transition: 0.3s;
    padding: 15px 0px 15px 15px;
    width: 275px;
    text-decoration: none;
    font-size: 15px;
    color: white;
    border-radius: 0 5px 5px 0;
  }
  
  #mySidenav a:hover {
    left: 0;
  }
  
  #about {
    top: 20px;
    background-color: #4CAF50;
  }
  
  #blog {
    top: 80px;
    background-color: #2196F3;
  }
  
  #projects {
    top: 140px;
    background-color: #f44336;
  }
  
  #contact {
    top: 200px;
    background-color: #555
  }