* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.wrapper {
  position: absolute;
  left: 50%;
  top: 40%;
  transform: translate(-50%, -50%);
}

.shadow {
  position: relative;
  margin: 0px auto 0px;
  width: 300px;
  height: 210px;
  background: linear-gradient(0deg, #000, #262626);

}

.shadow:before, .shadow:after {
  content: '';
  left: -18px;
  top: -18px;
  position: absolute;
  background: linear-gradient(45deg, #9F000F, #FFBF00, #228B22, #9F000F, #FFBF00, #228B22, #9F000F, #FFBF00, #228B22);
  background-size: 200%;
  width: calc(100% + 36px);
  height: calc(100% + 36px);
  z-index: -1;
  animation: animate 20s linear infinite;
}

#certificate {
  width: 300px;
  height: 210px;
}

p {
  background:rgba(55, 55, 55, 0.0);
  color: darkgray;
  position: absolute;
  background: transparent;
  color: #0000;
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  font-weight: 500;
}

#header {
  top: 10%;
  background:rgba(55, 55, 55, 0.5); 
  left: 50%;
  transform: translateX(-50%);
  color:#fff;
  font-size: 25px;
  font-family: sans-serif;
}

#award {
  background:rgba(55, 55, 55, 0.5); 
  left: 50%;
  transform: translateX(-50%);
  color:#fff;
  font-size: 50px;
  font-family: sans-serif;
}

.bottom-banner {
  position: relative;
  display: none;
  background-color: #FFF;
  z-index: 4;
}

#footer {
  background: none;
  color: black;
  font-family: sans-serif;
  display: none;
}

#linkedin {
  background: none; 
  color: black;
  font-family: sans-serif;
}

.preload {
  position: fixed;
  top: 0;
  width: 100%;
  height: 100vh;
  background:linear-gradient(to top, #AD4A28, #DD723C, #FC7001, #DCB697, #9BA5AE, #3E5879, #020B1A);
  display: flex;
  justify-content: center;
  align-items: center;
  transition: opacity 2.5s ease 5s; /* return these values to 2.5s and 5s */
  z-index: 98;
}

.preload-finish {
  opacity: 0;
  pointer-events: none;
  z-index: 99;
}

.cloud_1, .cloud_2, .cloud_3 {
  height: 100px;
  position: absolute;
  right: -50%;
}

.cloud_1 {
  top: 25%;
  transform: translate(100%, -25%);
  animation: clouds 2.0s infinite;
}

.cloud_2 {
  top: 50%;
  transform: translate(100%, -50%);
  z-index: -1;
  animation: clouds 2s infinite 1s;
}

.cloud_3 {
  top: 75%;
  transform: translate(100%, -75%);
  animation: clouds 2s infinite 1.5s;
}

.preloader_text {
  position: absolute;
  top: 75%;
  transform: translateY(-75%);
  font-family: sans-serif;
  font-weight: 600;
  letter-spacing: 0.5mm;
  color: #FFF;
}

.airplane {
  height: 200px;
  animation: airplane-anim 1s ease infinite alternate;
}

@keyframes airplane-anim {
  from {
    transform: translateY(0px);
  }
  to {
    transform: translateY(50px);
  }
}

@keyframes clouds {
  from {
    right: 0%;
  }
  to {
    right: 150%;
  }
}

.shadow:after {
  filter: blur(20px);
}

@keyframes animate {
  0% {
    background-position: 0 0;
  }
  50% {
    background-position: 150% 0;
  }
  100% {
    background-position: 0 0;
  }
}