xrpl-dev-portal/styles/_tutorials.scss

/* Tutorials ---------------------------------------------------------------- */
.tutorial-content {
  #beginner-cards {
    .card:nth-child(1) .card-footer {
      background-image: url(../img/cards/4col-magenta-3.svg);
    }
  }

  #sdk-cards {
    .card:nth-child(1) .card-footer {
      background-image: url(../img/cards/4col-light-blue-3.svg);
    }
    .card:nth-child(2) .card-footer {
      background-image: url(../img/cards/4col-magenta-3.svg);
    }
    .card:nth-child(3) .card-footer {
      background-image: url(../img/cards/4col-green-2.svg);
    }
    .card:nth-child(4) .card-footer {
      background-image: url(../img/cards/4col-yellow-2.svg);
    }
  }

  #use-cases-cards {
    .card:nth-child(1) .card-footer {
      background-image: url(../img/cards/3col-green-purple.svg);
    }
    .card:nth-child(2) .card-footer {
      background-image: url(../img/cards/3-col-light-blue-2.svg);
    }
    .card:nth-child(3) .card-footer {
      background-image: url(../img/cards/3-col-purple.svg);
    }
  }

  #servers-cards {
    .card:nth-child(1) .card-footer {
      background-image: url(../img/cards/4col-orange-yellow.svg);
    }
    .card:nth-child(2) .card-footer {
      background-image: url(../img/cards/3-col-light-blue-2.svg);
    }
    .card:nth-child(3) .card-footer {
      background-image: url(../img/cards/3-col-pink2.svg);
    }
    .card:nth-child(4) .card-footer {
      background-image: url(../img/cards/3-col-purple-blue.svg);
    }
  }

  #businesses-cards {
    .card:nth-child(1) .card-footer {
      background-image: url(../img/cards/4col-light-blue-3.svg);
    }
    .card:nth-child(2) .card-footer {
      background-image: url(../img/cards/3col-green.svg);
    }
  }
}

.tutorial-card-grid {
  grid-gap: 40px !important;
  row-gap: 0 !important;
  &.card-grid {
    .card {
      margin-bottom: 2.5rem;
      background-position: bottom;
      background-repeat: no-repeat;
      background-size: contain;
      padding: 0;
      min-height: 0;

      .card-body {
        padding: 32px;
      }

      .card-title {
        margin-bottom: 16px;
        margin-top: 0;

        &.external-link::after {
          background-size: 0.9rem;
          vertical-align: middle;
          margin-left: 12px;
          margin-bottom: 12px;
          margin-right: 10px;
          width: 1.5rem;
        }

        &.nav-link {
          padding: 0;
        }
      }

      .card-footer {
        font-size: 0;
        padding: 1rem;
        background-position: bottom;
        background-repeat: no-repeat;
        background-size: cover;
        border-top: 0;
      }
    }

    a {
      text-decoration: none;
    }

    .card-icon-container {
      width: 50px;
      height: 50px;
      background: $gray-600;
      display: flex;
      justify-content: center;
      align-items: center;
      border-radius: 50%;
      margin-bottom: 12px;

      img {
        width: 70%;
        height: 70%;
      }
    }
  }
}

.col-lg-6 > .tutorial-sidebar {
  flex: 0 0 70%;
  max-width: 70%;
}