Une Introduction à CSS Structure de la Grille: La moitié 1

Par | Octobre 18, 2017

C'est le premier à publier dans les deux partie de la séquence pour obtenir a commencé avec CSS Structure de la Grille. Dans le cas où vous êtes attirent l'attention dans l'étude supplémentaire sur Grille CSS et le nouveau modèle CSS Structure de la Grille de la fonction dans Firefox, aller à la Firefox DevTools aire de Jeux.

CSS Structure de la Grille est totalement modifier le sport pour la conception de sites internet. It permits us to create complicated layouts on the net utilizing easy CSS.

But wait! I can already create layouts with floats/hacks/tables/frameworks.

This is true, however CSS Grid Layout is a two-dimensional grid system that’s native to CSS. It’s a internet customary, similar to HTML, and it actually works in all fashionable browsers. With CSS Grid Structure you may create exact layouts for the online. You may construct orderly columns and rows, or clever overlapping content material areas to create gorgeous new designs.

Ready? Lets get started.

Before we dive into CSS Grid ideas, lets cowl some fundamental terminology.


Grid lines
The vertical and horizontal traces that divide the grid and separate the columns and rows.

Grid cell
A single unit of a CSS grid.

Grid area
A rectangular house surrounded by 4 grid traces. A grid space can comprise any variety of grid cells.

Grid track
The house between two grid traces. This house might be horizontal or vertical

Grid row
A horizontal monitor of a grid.

Grid column
A vertical monitor of a grid.

Note: Rows and columns are switched in case you are utilizing a vertical writing mode.

The house between rows and columns in a grid.

Grid container
The container that holds the whole CSS grid. Will in all probability be the ingredient that has the show: grid or show: inline-grid property on it.

Grid item
Any ingredient that’s the direct baby of a grid container.

Got it? Lets transfer on now to creating our first grid with CSS Grid Layout.

Create a grid

The very first thing we wish to do is create a grid container. We are ready to do that by declaring show: grid on the container ingredient. On this instance we’re utilizing a div with the category of container.

Define rows and columns

There are a quantity of methods to outline rows and columns. For our first grid, we are going to use properties grid-template-columns and grid-template-rows. These properties permit us to outline the scale of the rows and columns for our grid. To create a grid the place the primary two rows have a fixed-height of 150px and the primary three columns have a fixed-width of 150px, merely write:

grid-template-columns: 150px 150px 150px;grid-template-rows: 150px 150px;

To set the fourth column as 70px broad, écrire:

grid-template-columns: 150px 150px 150px 70px;

and so on so as to add extra columns.

Note: Within the above instance, we outlined an specific grid of 32. If we place one thing outdoors of that outlined grid, then CSS Grid Structure will create these rows and columns within the implicit grid. Implicit grids arent coated on this tutorial, however check out this text on MDN to study extra about implicit and specific grids.

Add a gutter

Adding a gutter to your grid is amazingly easy with CSS Grid Structure. Merely add:

grid-gap: 1rem;

That easy line of code offers you an equal-sized gutter between all rows and columns. To outline the gutter dimension for columns and rows individually, you ought to use the grid-column-gap and grid-row-gap properties instead.

Now lets put that every one collectively. Right here is our HTML:

<div class=container”> <div class=item”></div> <div class=item”></div> <div class=item”></div> <div class=item”></div> <div class=item”></div> <div class=item”></div></div>

With only a few traces of CSS, we are ready to create a easy grid:

.container { montrer: grid; grid-template-columns: 150px 150px 150px; grid-template-rows: 150px 150px; grid-gap: 1rem;}

Here is the result:

See the Pen CSS Grid Structure Fundamental Grid by Mozilla Builders (@mozilladevelopers) on CodePen.

The fr Unit

Creating grids with a set px width is nice, however it isnt very versatile. Heureusement, CSS Grid Structure introduces a model new unit of size known as fr, which is brief for fraction. MDN defines the fr unit as a unit which represents a fraction of the obtainable house within the grid container. If we wish to rewrite our earlier grid to have three equal-width columns, we may change our CSS to make use of the fr unit:

.container { montrer: grid; width: 800px; grid-template-columns: 1fr 1fr 1fr; grid-template-rows: 150px 150px; grid-gap: 1rem;}The repeat() la notation

Handy tip: If you finish up repeating size items, use the repeat() la notation. Rewrite the above code like so:

.container { montrer: grid; width: 800px; grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(2, 150px); grid-gap: 1rem;}

Here is the result:

See the Pen CSS Grid Structure Fractional Unit by Mozilla Builders (@mozilladevelopers) on CodePen.

When declaring monitor sizes, you ought to use mounted sizes with items equivalent to px and em. You can too use versatile sizes equivalent to percentages or the fr unit. The true magic of CSS Grid Structure, néanmoins, is the power to combine these items. The best way to know is with an example:

.container { width: 100 pour cent; montrer: grid; grid-template-columns: 100px 30% 1fr; grid-template-rows: 200px 100px; grid-gap: 1rem;}

Ici, we’ve declared a grid with three columns. The primary column is a set width of 100px. The second column will occupy 30% of the obtainable house, and the third column is 1fr which suggests it goes to take up a fraction of the obtainable house. Sur ce cas, it goes to take up all the remaining house (1/1).

Here is our HTML:

<div class=container”> <div class=item”></div> <div class=item”></div> <div class=item”></div> <div class=item”></div> <div class=item”></div> <div class=item”></div></div>

Here is the result:

See the Pen CSS Grid Mixing Units by Mozilla Builders (@mozilladevelopers) on CodePen.

You can go to our playground for the total information on the proper means to get began with CSS Grid Structure, or take a glance at Part 2 earlier than you go. In case you are able to dive deeper into CSS Grid Structure, take a glance at the excellent guides on MDN.

Creator, developer, strategist, homebrewer, runner, sock fanatic, beard evangelist, author, drummer, adventurer, Oxford comma advocate, and human Swiss Military Knife.

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