body {
  display: flex;
  justify-content: center;
  align-items: center;

  height: 100vh;
  width: 100vw;

  margin: 0;
  padding: 0;

  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
}
img {
  height: 100%;
  width: 100%;

  object-fit: cover;
  object-position: center;
}
.secondary {
  opacity: 0.5;
}
.card {
  width: 30rem;

  border-radius: 1rem;

  box-shadow: rgba(0, 0, 0, 0.25) 0px 54px 55px,
    rgba(0, 0, 0, 0.12) 0px -12px 30px, rgba(0, 0, 0, 0.12) 0px 4px 6px,
    rgba(0, 0, 0, 0.17) 0px 12px 13px, rgba(0, 0, 0, 0.09) 0px -3px 5px;

  overflow: hidden;
}
.card > .img {
  width: 100%;
  height: 15rem;
}
.card .footer {
  padding: 1rem 3rem 3rem 3rem;

  box-sizing: border-box;
}
.card .footer .title {
  margin-bottom: 3rem;
}
.card .footer .author {
  display: flex;
}
.card .footer .author .img {
  width: 4rem;
  height: 4rem;

  border-radius: 50%;

  overflow: hidden;
  flex-grow: 0;
}
.card .footer .author .info {
  display: flex;
  flex-direction: column;
  justify-content: space-around;

  padding-left: 1rem;
  box-sizing: border-box;
  flex-grow: 1;
}
.card .footer .author .info .name {
  font-size: 1rem;
  font-weight: bold;
}
.loading-bg {
  min-height: 1em;
  background-color: #f1f2f6;

  background-image: linear-gradient(
    to right,
    transparent 0%,
    #ced6e0 10%,
    transparent 20%,
    transparent 30%
  );
  background-size: 200%;
  animation: loading-bg 1s linear infinite;
}
@keyframes loading-bg {
  0% {
    background-position: 50%;
  }
  100% {
    background-position: -150%;
  }
}