### Container

    .grid-container {

      /* Display properties */
      display: grid;
      display: inline-grid;
      display: subgrid;

      /* Columns and rows */
      grid-template-columns: 1rem 2rem 1rem; /* Measurement units */
      grid-template-columns: 25% 50% 25%; /* Percentage units */
      grid-template-columns: 1rem auto 1rem 2fr; /* Fill remaining widths with auto or fr units */
      grid-template-columns: repeat(12, 1fr); /* Repeat columns without needing to write them */

      grid-template-rows: 1rem 10% auto repeat(5, 10px); /* Mix any group, same rules work for rows */

      /* Automatic columns and rows */

      grid-auto-columns: 10px; /* No matter how many columns of content end up in the grid, each column will be this same width */
      grid-auto-rows: 1rem; /* No matter how many rows of content end up in the grid, each row will be this same height */

      /* Areas */
      grid-template-areas:
        "header header"
        "main aside"
        "footer footer"; /* Grid-style */

      grid-template-areas: "header header" "main aside" "footer footer"; /* Inline-style */

      /* Template shorthand */
      grid-template:
        "header header" auto
        "main aside" 100vh
        "footer footer" 10rem
        / 80% 20%;

      /* The above is the same as below long-hand */
      grid-template-columns: 80% 20%;
      grid-template-rows: auto 100vh 10rem;
      grid-template-areas:
        "header header"
        "main aside"
        "footer footer";

      /* Gaps */
      grid-row-gap: 1rem;
      grid-column-gap: 0.5rem; /* Define values separately */

      grid-gap: 1rem 0.5rem; /* Short-hand for row / column */
      grid-gap: 1rem; /* Gap in both dimensions */

      /* Item justification (horizontal or column alignment) */
      justify-items: start; /* Align items to the left */
      justify-items: center; /* Align items centered within its column */
      justify-items: end; /* Align items to the right */
      justify-items: stretch; /* (default) Fills available area (horizontally) */

      /* Item alignment (vertical or row alignment) */
      align-items: start; /* Align items to the top */
      align-items: center; /* Align items centered within its row */
      align-items: end; /* Align items to the bottom */
      align-items: stretch; /* (default) Fills available area (vertically) */

      /* Place item shorthand */
      place-items: start stretch;

      /* The above is the same as below long-hand */
      align-items: start;
      justify-items: stretch;

      /* Content justification (horizontal or column alignment) */
      justify-content: start; /* Align content to the left */
      justify-content: center; /* Align content centered horizontally within the grid */
      justify-content: end; /* Align content to the right */
      justify-content: stretch; /* (default) Fills available area (horizontally) */

      justify-content: space-around; /* Chooses a space for both sides of the columns like a left and right margin */
      justify-content: space-between; /* Chooses a space to go between columns, no margins on outside of content */
      justify-content: space-evenly; /* Chooses a space that goes between all columns and edges consistently */

      /* Content alignment (horizontal or column alignment) */
      align-content: start; /* Align content to the top */
      align-content: center; /* Align content centered vertically within the grid */
      align-content: end; /* Align content to the bottom */
      align-content: stretch; /* (default) Fills available area (vertically) */

      align-content: space-around; /* Chooses a space for the top and bottom of the rows like a top and bottom margin */
      align-content: space-between; /* Chooses a space to go between rows, no margins on outside of content */
      align-content: space-evenly; /* Chooses a space that goes between all rows and edges consistently */

      /* Place item shorthand */
      place-content: center start;

      /* The above is the same as below long-hand */
      align-content: center;
      justify-content: start;

      /* Automatic grid positioning */

      grid-auto-flow: row; /* Left-to-right rows, then top-to-bottom*/
      grid-auto-flow: column; /* Top-to-bottom columns, then left-to-right */
      grid-auto-flow: dense; /* Responds with best-guess on left-to-right, top-to-bottom order with advanced layouts */

      /* There is one final shorthand for all container properties in one */

      /* Explicit grid columns, rows, and areas */
      grid:
        "header header" auto
        "main aside" 100vh
        "footer footer" 10rem
        / 80% 20%; /* You can include a template as the only value, which is equivalent to below */
      grid-template:
        "header header" auto
        "main aside" 100vh
        "footer footer" 10rem
        / 80% 20%; /* Which is again equivalent to below */
      grid-template-columns: 80% 20%;
      grid-template-rows: auto 100vh 10rem;
      grid-template-areas:
        "header header"
        "main aside"
        "footer footer";

      /* Automatic grid flows */
      grid: 1rem / auto-flow dense 1fr; /* You can include rows, a flow, and automatic columns, which is equivalent to below */
      grid-template-rows: 1rem;
      grid-auto-flow: dense;
      grid-auto-columns: 1fr;

      grid: auto-flow dense 1rem / repeat(10, 10%); /* Conversely, you can do the same thing with automatic rows, and defined columns */
      grid-auto-flow: dense;
      grid-auto-rows: 1rem;
      grid-template-columns: repeat(10, 10%);

    }

### Child

    .grid-child {

      /* Column position */
      grid-column-start: 1;
      grid-column-end: 2;

      grid-column: 1 / 2; /* Short hand */
      grid-column: 1 / span 2; /* Span 2 columns without explicitly defining an endpoint */
      grid-column: 1; /* Start in and occupy a single column */

      /* Row position */
      grid-row-start: 2;
      grid-row-end: 4;

      grid-row: 2 / 4; /* Short hand */
      grid-row: 2 / span 3;/* Span 3 rows without explicitly defining an endpoint */
      grid-row: 1; /* Start in and occupy a single row */

      /* Area positioning */
      grid-area: header; /* You can use a named grid area from the container */

      grid-area: 2 / 1 / 4 / 2; /* Or you can use positioning. This is equivalent to... */
      grid-row-start: 2;
      grid-column-start: 1;
      grid-row-end: 4;
      grid-column-end: 2;

      /* Self justification (horizontal or column alignment) */
      justify-self: start; /* Align item to the left */
      justify-self: center; /* Align item centered within its column */
      justify-self: end; /* Align item to the right */
      justify-self: stretch; /* (default) Fills available area (horizontally) */

      /* Self alignment (vertical or row alignment) */
      align-self: start; /* Align item to the top */
      align-self: center; /* Align item centered within its row */
      align-self: end; /* Align item to the bottom */
      align-self: stretch; /* (default) Fills available area (vertically) */

      /* Placement shorthand */
      place-self: start stretch;

      /* The above is the same as below long-hand */
      align-self: start;
      justify-self: stretch;

    }

## References

- GRID: A simple visual cheatsheet
- CSS Tricks: A Complete Guide to Grid
- Browser support

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