tabs.pcss.css

Same filename in this branch
  1. 10 core/themes/claro/css/components/tabs.pcss.css
Same filename and directory in other branches
  1. 11.x core/themes/olivero/css/components/tabs.pcss.css
  2. 11.x core/themes/claro/css/components/tabs.pcss.css
  3. 9 core/themes/olivero/css/components/tabs.pcss.css
  4. 9 core/themes/claro/css/components/tabs.pcss.css
  5. 8.9.x core/themes/claro/css/components/tabs.pcss.css
@import "../base/media-queries.pcss.css";

/* Breakpoint where tabs switch between vertical and horizontal layouts. */
@custom-media --tabs-layout-switch (--md);

.tabs {
  --tabs-height: var(--sp3);
  --tabs-padding-inline: var(--sp1-5);
  --tabs-active-border-size: 6px;
  --tabs-highlight-color: var(--color--primary-50); /* Minimum 3:1 contrast ratio against --tabs-background-color and --tabs-background-color-hover. */
  --tabs-text-color: var(--color-text-neutral-soft); /* Minimum 4.5:1 contrast ratio against --tabs-background-color and --tabs-background-color-hover. */
  --tabs-text-color-active: var(--color--gray-5); /* Minimum 4.5:1 contrast ratio against --tabs-background-color and --tabs-background-color-hover. */
  --tabs-letter-spacing: 1px;
  --tabs-font-size: var(--font-size-s);
  --tabs-background-color: var(--color--gray-100);
  --tabs-background-color-hover: var(--color--gray-95);
  --tabs-border-width: 1px;
  --tabs-border-color: var(--color--gray-95);
  --tabs-transition-duration: 0.2s;

  display: flex;
  flex-direction: column;
  width: 100%;
  margin: 0;
  margin-inline-start: 0; /* Override [dir] attribute in base <ul> in compiled CSS. */
  padding: 0;
  list-style: none;

  @media (--tabs-layout-switch) {
    flex-direction: row;
    flex-wrap: wrap;
  }
}

.tabs__tab {
  display: none;
  margin: 0;
  margin-block-end: calc(-1 * var(--tabs-border-width));

  &.is-active {
    display: flex;
  }

  @media (--tabs-layout-switch) {
    display: flex;
    margin-block-end: 0;
    margin-inline-start: calc(-1 * var(--tabs-border-width));
  }

  /* Show tabs when JavaScript disabled. */
  @nest html:not(.js) & {
    display: flex;
  }

  /* Show tabs when tabs-expanded class is present. */
  @nest .tabs.is-expanded & {
    display: flex;
  }

  /* Secondary tabs will always be expanded. */
  @nest .tabs--secondary & {
    display: block;

    @media (--tabs-layout-switch) {
      display: flex;
    }
  }
}

.tabs__link {
  display: flex;
  flex-grow: 1;
  align-items: center;
  height: var(--tabs-height);
  padding-block: 0;
  padding-inline: var(--tabs-padding-inline);
  transition: background-color var(--tabs-transition-duration);
  text-decoration: none;
  letter-spacing: var(--tabs-letter-spacing);
  color: var(--tabs-text-color);
  border: var(--tabs-border-width) solid var(--tabs-border-color);
  background-color: var(--tabs-background-color);
  font-size: var(--tabs-font-size);

  &:hover {
    color: var(--tabs-text-color-active);
    background-color: var(--tabs-background-color-hover);
  }

  &:focus {
    position: relative;
    outline: solid 3px var(--tabs-highlight-color);
    outline-offset: -3px;
  }

  &.is-active {
    position: relative; /* Anchor ::after pseudo-element. */
    color: var(--tabs-text-color-active);
    font-weight: 600;

    /*
     * We use ::after pseudo-element in place of border so edges do not appear
     * diagonally cut off due to other edges with transparent borders.
     */
    &::after {
      position: absolute;
      inset-block-start: calc(-1 * var(--tabs-border-width));
      inset-inline-start: calc(-1 * var(--tabs-border-width));
      height: calc(100% + var(--tabs-border-width) * 2);
      content: "";
      border-inline-start: var(--tabs-active-border-size) solid var(--tabs-highlight-color);

      @media (--tabs-layout-switch) {
        inset-block: auto calc(-1 * var(--tabs-border-width));
        width: calc(100% + 2 * var(--tabs-border-width));
        height: 0;
        border-block-start: var(--tabs-active-border-size) solid var(--tabs-highlight-color);
        border-inline-start: 0;
      }
    }
  }

  /* No regular borders or background color for secondary tab links. */
  @nest .tabs--secondary & {
    @media (--tabs-layout-switch) {
      border-color: transparent;
      background-color: transparent;
    }
  }
}

/* Button that opens and closes primary tabs at narrow viewports. */
.tabs__trigger {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--tabs-height);
  margin-block: 0;
  margin-inline: calc(-1 * var(--tabs-border-width)) 0;
  cursor: pointer;
  border: solid var(--tabs-border-width) var(--tabs-border-color);
  background-color: var(--tabs-background-color);

  &:hover {
    background-color: var(--tabs-background-color-hover);
  }

  &:focus {
    position: relative;
    border-color: var(--tabs-highlight-color);
    outline: none;
  }

  /* Button will not work when JavaScript is disabled, so we hide it. */
  @nest html:not(.js) & {
    display: none;
  }

  @media (--tabs-layout-switch) {
    display: none;
  }
}

.tabs__trigger-icon {
  position: relative;
  display: block;
  width: var(--sp);
  height: 10px;
  margin-block-start: calc(-2 * var(--tabs-border-width));

  & > span {
    position: absolute;
    inset-inline-start: 0;
    display: block;
    width: 100%;
    transition:
      transform var(--tabs-transition-duration),
      opacity var(--tabs-transition-duration),
      top var(--tabs-transition-duration);
    border-block-start: solid 2px var(--tabs-highlight-color);

    &:nth-child(1) {
      inset-block-start: 0;

      @nest .tabs__trigger[aria-expanded="true"] & {
        inset-block-start: calc(50% + 1px);
        transform: rotate(45deg);
      }
    }

    &:nth-child(2) {
      inset-block-start: calc(50% + 1px);

      @nest .tabs__trigger[aria-expanded="true"] & {
        opacity: 0;
      }
    }

    &:nth-child(3) {
      inset-block-start: calc(100% + 2px);

      @nest .tabs__trigger[aria-expanded="true"] & {
        inset-block-start: calc(50% + 1px);
        transform: rotate(-45deg);
      }
    }
  }
}

File

View on git.drupalcode.org

core/themes/olivero/css/components/tabs.pcss.css

View source 
  1. @import "../base/media-queries.pcss.css";

  2. 

  3. /* Breakpoint where tabs switch between vertical and horizontal layouts. */

  4. @custom-media --tabs-layout-switch (--md);

  5. 

  6. .tabs {

  7.   --tabs-height: var(--sp3);

  8.   --tabs-padding-inline: var(--sp1-5);

  9.   --tabs-active-border-size: 6px;

  10.   --tabs-highlight-color: var(--color--primary-50); /* Minimum 3:1 contrast ratio against --tabs-background-color and --tabs-background-color-hover. */

  11.   --tabs-text-color: var(--color-text-neutral-soft); /* Minimum 4.5:1 contrast ratio against --tabs-background-color and --tabs-background-color-hover. */

  12.   --tabs-text-color-active: var(--color--gray-5); /* Minimum 4.5:1 contrast ratio against --tabs-background-color and --tabs-background-color-hover. */

  13.   --tabs-letter-spacing: 1px;

  14.   --tabs-font-size: var(--font-size-s);

  15.   --tabs-background-color: var(--color--gray-100);

  16.   --tabs-background-color-hover: var(--color--gray-95);

  17.   --tabs-border-width: 1px;

  18.   --tabs-border-color: var(--color--gray-95);

  19.   --tabs-transition-duration: 0.2s;

  20. 

  21.   display: flex;

  22.   flex-direction: column;

  23.   width: 100%;

  24.   margin: 0;

  25.   margin-inline-start: 0; /* Override [dir] attribute in base 
       in compiled CSS. */

    •   padding: 0;

    •   list-style: none;

    • 

    •   @media (--tabs-layout-switch) {

    •     flex-direction: row;

    •     flex-wrap: wrap;

    •   }

    • }

    • 

    • .tabs__tab {

    •   display: none;

    •   margin: 0;

    •   margin-block-end: calc(-1 * var(--tabs-border-width));

    • 

    •   &.is-active {

    •     display: flex;

    •   }

    • 

    •   @media (--tabs-layout-switch) {

    •     display: flex;

    •     margin-block-end: 0;

    •     margin-inline-start: calc(-1 * var(--tabs-border-width));

    •   }

    • 

    •   /* Show tabs when JavaScript disabled. */

    •   @nest html:not(.js) 
    • 

    •   /* Show tabs when tabs-expanded class is present. */

    •   @nest .tabs.is-expanded 
    • 

    •   /* Secondary tabs will always be expanded. */

    •   @nest .tabs--secondary 
    •   }

    • }

    • 

    • .tabs__link {

    •   display: flex;

    •   flex-grow: 1;

    •   align-items: center;

    •   height: var(--tabs-height);

    •   padding-block: 0;

    •   padding-inline: var(--tabs-padding-inline);

    •   transition: background-color var(--tabs-transition-duration);

    •   text-decoration: none;

    •   letter-spacing: var(--tabs-letter-spacing);

    •   color: var(--tabs-text-color);

    •   border: var(--tabs-border-width) solid var(--tabs-border-color);

    •   background-color: var(--tabs-background-color);

    •   font-size: var(--tabs-font-size);

    • 

    •   &:hover {

    •     color: var(--tabs-text-color-active);

    •     background-color: var(--tabs-background-color-hover);

    •   }

    • 

    •   &:focus {

    •     position: relative;

    •     outline: solid 3px var(--tabs-highlight-color);

    •     outline-offset: -3px;

    •   }

    • 

    •   &.is-active {

    •     position: relative; /* Anchor ::after pseudo-element. */

    •     color: var(--tabs-text-color-active);

    •     font-weight: 600;

    • 

    •     /*

    •      * We use ::after pseudo-element in place of border so edges do not appear

    •      * diagonally cut off due to other edges with transparent borders.

    •      */

    •     &::after {

    •       position: absolute;

    •       inset-block-start: calc(-1 * var(--tabs-border-width));

    •       inset-inline-start: calc(-1 * var(--tabs-border-width));

    •       height: calc(100% + var(--tabs-border-width) * 2);

    •       content: "";

    •       border-inline-start: var(--tabs-active-border-size) solid var(--tabs-highlight-color);

    • 

    •       @media (--tabs-layout-switch) {

    •         inset-block: auto calc(-1 * var(--tabs-border-width));

    •         width: calc(100% + 2 * var(--tabs-border-width));

    •         height: 0;

    •         border-block-start: var(--tabs-active-border-size) solid var(--tabs-highlight-color);

    •         border-inline-start: 0;

    •       }

    •     }

    •   }

    • 

    •   /* No regular borders or background color for secondary tab links. */

    •   @nest .tabs--secondary 
    •   }

    • }

    • 

    • /* Button that opens and closes primary tabs at narrow viewports. */

    • .tabs__trigger {

    •   display: flex;

    •   align-items: center;

    •   justify-content: center;

    •   width: var(--tabs-height);

    •   margin-block: 0;

    •   margin-inline: calc(-1 * var(--tabs-border-width)) 0;

    •   cursor: pointer;

    •   border: solid var(--tabs-border-width) var(--tabs-border-color);

    •   background-color: var(--tabs-background-color);

    • 

    •   &:hover {

    •     background-color: var(--tabs-background-color-hover);

    •   }

    • 

    •   &:focus {

    •     position: relative;

    •     border-color: var(--tabs-highlight-color);

    •     outline: none;

    •   }

    • 

    •   /* Button will not work when JavaScript is disabled, so we hide it. */

    •   @nest html:not(.js) 
    • 

    •   @media (--tabs-layout-switch) {

    •     display: none;

    •   }

    • }

    • 

    • .tabs__trigger-icon {

    •   position: relative;

    •   display: block;

    •   width: var(--sp);

    •   height: 10px;

    •   margin-block-start: calc(-2 * var(--tabs-border-width));

    • 

    •   & > span {

    •     position: absolute;

    •     inset-inline-start: 0;

    •     display: block;

    •     width: 100%;

    •     transition:

    •       transform var(--tabs-transition-duration),

    •       opacity var(--tabs-transition-duration),

    •       top var(--tabs-transition-duration);

    •     border-block-start: solid 2px var(--tabs-highlight-color);

    • 

    •     &:nth-child(1) {

    •       inset-block-start: 0;

    • 

    •       @nest .tabs__trigger[aria-expanded="true"] 
    •     }

    • 

    •     &:nth-child(2) {

    •       inset-block-start: calc(50% + 1px);

    • 

    •       @nest .tabs__trigger[aria-expanded="true"] 
    •     }

    • 

    •     &:nth-child(3) {

    •       inset-block-start: calc(100% + 2px);

    • 

    •       @nest .tabs__trigger[aria-expanded="true"] 
    •     }

    •   }

    • }

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