discourse/app/assets/stylesheets/common/base/edit-category.scss

$category-settings-width: unquote("min(500px, 90%)");
$number-input-width: 75px;

div.edit-category {
  display: grid;
  grid-template-columns: 1fr 5fr;
  grid-template-rows: auto auto auto;
  grid-row-gap: 1em;
  grid-column-gap: 1.5em;
  grid-template-areas: "sidebar header" "sidebar content" "sidebar footer";

  .edit-category-title {
    grid-area: header;
    display: flex;
    justify-content: space-between;
    align-self: start;
  }

  .nav-stacked {
    grid-area: sidebar;
    grid-row: 1 / span 3;
    background: transparent;
  }

  #list-area & h2 {
    margin: 0;
  }

  section.field {
    margin-bottom: 1em;
  }

  .edit-category-tab-general {
    .category-chooser {
      width: unquote("min(340px, 90%)");
    }
  }

  .edit-category-tab-security {
    .permission-selector {
      margin-right: 0.25em;
    }

    .pending-permission-change-alert {
      margin-left: auto;
      max-width: 250px;
      background: var(--primary-very-high);
      color: var(--secondary);
      margin-top: 10px;
      padding: 5px 10px;
      position: relative;
      .arrow-div {
        border: solid transparent;
        content: " ";
        position: absolute;
        border-bottom-color: var(--primary-very-high);
        border-width: 7px;
        top: -13px;
        left: 200px;
      }
    }

    .add-permission {
      position: relative;
      top: 0.1em;
    }

    .permission-list {
      list-style: none;
      margin: 0 0 30px;
      padding: 0;
      .name {
        margin-right: 20px;
        display: inline-block;
        min-width: 100px;
      }
      .permission {
        margin-left: 20px;
      }
      .d-icon-times-circle {
        margin-left: 5px;
        color: var(--danger);
      }
      li {
        margin-bottom: 10px;
      }
    }
  }

  .edit-category-tab-settings {
    > section {
      margin-bottom: 1.5em;
    }

    input[type="text"],
    .select-kit {
      width: $category-settings-width;
    }

    label {
      max-width: $category-settings-width;
    }
    input[type="number"] {
      width: $number-input-width;
    }
  }

  .edit-category-tab-tags {
    #category-min-tags-from-group {
      width: $number-input-width;
      min-height: 36px;
    }

    .select-kit {
      &.tag-chooser {
        width: $category-settings-width;

        .select-kit-filter,
        .filter-input {
          min-width: 250px;
        }

        .select-kit-body {
          max-width: 100%;
        }
      }
    }

    .manage-tag-groups {
      display: block;
    }
  }

  .edit-category-footer {
    grid-area: footer;
    display: flex;
    justify-content: space-between;
    align-self: start;

    .disable-info {
      position: relative;
      .cannot-delete-reason {
        position: absolute;
        bottom: 125%;
        right: 0px;
        width: 250px;
        background: var(--primary);
        color: var(--secondary);
        text-align: center;
        border-radius: 2px;
        padding: 12px 8px;

        &::after {
          top: 100%;
          left: 57%;
          border: solid transparent;
          content: " ";
          position: absolute;
          border-top-color: var(--primary);
          border-width: 8px;
        }
      }
    }
  }
}