* {
  margin: 0;
  padding: 0;
  font-family: "Poppins", sans-serif;
  box-sizing: border-box;
}

.loader {
  position: fixed;
  z-index: 99;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: white;
  display: flex;
  justify-content: center;
  align-items: center;
}

.loader > img {
  width: 80px;
}

.loader.hidden {
  animation: fadeOut 1s;
  animation-fill-mode: forwards;
}

@keyframes fadeOut {
  100% {
    opacity: 0;
    visibility: hidden;
  }
}

.container {
  width: 90%;

  margin: 50px auto;
  padding: 20px;
}

.gallery-box div {
  columns: 3;
  column-gap: 15px;
}

.gallery-box img {
  width: 100%;
  height: auto;
  margin-bottom: 1rem;
  border-radius: 1%;
  object-fit: cover;
  object-position: 50% 50%;
  transition: 0.5s ease-in-out;
  animation: fade-in 1.2s cubic-bezier(0.39, 0.575, 0.565, 1) both;
}

.gallery-box img:hover {
  filter: brightness(70%);
}

@-webkit-keyframes fade-in {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@keyframes fade-in {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

.loading-dots {
  display: inline-block;
  left: 50%;
  position: relative;
  transform: translateX(-50%);
  width: 80px;
  height: 80px;
}

.loading-dots.hide {
  opacity: 0;
}
.loading-dots div {
  position: absolute;
  top: 33px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: #333;
  animation-timing-function: cubic-bezier(0, 1, 1, 0);
}
.loading-dots div:nth-child(1) {
  left: 8px;
  animation: loading-dots1 0.6s infinite;
}
.loading-dots div:nth-child(2) {
  left: 8px;
  animation: loading-dots2 0.6s infinite;
}
.loading-dots div:nth-child(3) {
  left: 32px;
  animation: loading-dots2 0.6s infinite;
}
.loading-dots div:nth-child(4) {
  left: 56px;
  animation: loading-dots3 0.6s infinite;
}
@keyframes loading-dots1 {
  0% {
    transform: scale(0);
  }
  100% {
    transform: scale(1);
  }
}
@keyframes loading-dots3 {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(0);
  }
}
@keyframes loading-dots2 {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(24px, 0);
  }
}

@media only screen and (max-width: 768px) {
  .gallery-box div{
    columns: 2;
  }
}

@media only screen and (max-width: 400px) {
  .gallery-box div{
    columns: 1;
  }
}