144 lines
5.1 KiB
Markdown
144 lines
5.1 KiB
Markdown
---
|
|
id: 5a90372638fddaf9a66b5d38
|
|
title: Use grid-column to Control Spacing
|
|
challengeType: 0
|
|
videoUrl: 'https://scrimba.com/p/pByETK/cnzkDSr'
|
|
forumTopicId: 301136
|
|
---
|
|
|
|
## Description
|
|
<section id='description'>
|
|
Up to this point, all the properties that have been discussed are for grid containers. The <code>grid-column</code> property is the first one for use on the grid items themselves.
|
|
The hypothetical horizontal and vertical lines that create the grid are referred to as <dfn>lines</dfn>. These lines are numbered starting with 1 at the top left corner of the grid and move right for columns and down for rows, counting upward.
|
|
This is what the lines look like for a 3x3 grid:
|
|
<div style="position:relative;margin:auto;background:Gainsboro;display:block;margin-top:100px;margin-bottom:50px;width:200px;height:200px;"><p style="left:25%;top:-30%;font-size:130%;position:absolute;color:RoyalBlue;">column lines</p><p style="left:0%;top:-15%;font-size:130%;position:absolute;color:RoyalBlue;">1</p><p style="left:30%;top:-15%;font-size:130%;position:absolute;color:RoyalBlue;">2</p><p style="left:63%;top:-15%;font-size:130%;position:absolute;color:RoyalBlue;">3</p><p style="left:95%;top:-15%;font-size:130%;position:absolute;color:RoyalBlue;">4</p><p style="left:-40%;top:45%;font-size:130%;transform:rotateZ(-90deg);position:absolute;">row lines</p><p style="left:-10%;top:-10%;font-size:130%;position:absolute;">1</p><p style="left:-10%;top:21%;font-size:130%;position:absolute;">2</p><p style="left:-10%;top:53%;font-size:130%;position:absolute;">3</p><p style="left:-10%;top:85%;font-size:130%;position:absolute;">4</p><div style="left:0%;top:0%;width:5%;height:100%;background:RoyalBlue;position:absolute;"></div><div style="left:31%;top:0%;width:5%;height:100%;background:RoyalBlue;position:absolute;"></div><div style="left:63%;top:0%;width:5%;height:100%;background:RoyalBlue;position:absolute;"></div><div style="left:95%;top:0%;width:5%;height:100%;background:RoyalBlue;position:absolute;"></div><div style="left:0%;top:0%;width:100%;height:5%;background:black;position:absolute;"></div><div style="left:0%;top:31%;width:100%;height:5%;background:black;position:absolute;"></div><div style="left:0%;top:63%;width:100%;height:5%;background:black;position:absolute;"></div><div style="left:0%;top:95%;width:100%;height:5%;background:black;position:absolute;"></div></div>
|
|
To control the amount of columns an item will consume, you can use the <code>grid-column</code> property in conjunction with the line numbers you want the item to start and stop at.
|
|
Here's an example:
|
|
|
|
```css
|
|
grid-column: 1 / 3;
|
|
```
|
|
|
|
This will make the item start at the first vertical line of the grid on the left and span to the 3rd line of the grid, consuming two columns.
|
|
</section>
|
|
|
|
## Instructions
|
|
<section id='instructions'>
|
|
Make the item with the class <code>item5</code> consume the last two columns of the grid.
|
|
</section>
|
|
|
|
## Tests
|
|
<section id='tests'>
|
|
|
|
```yml
|
|
tests:
|
|
- text: <code>item5</code> class should have a <code>grid-column</code> property.
|
|
testString: assert($('style').text().replace(/\s/g, '').match(/\.item5{.*grid-column:.*}/g));
|
|
- text: <code>item5</code> class should have a <code>grid-column</code> property which results in the <code>div</code> with the <code>item5</code> consuming the last two columns of the grid.
|
|
testString: assert(hasCorrectSpacing());
|
|
|
|
```
|
|
|
|
</section>
|
|
|
|
## Challenge Seed
|
|
<section id='challengeSeed'>
|
|
|
|
<div id='html-seed'>
|
|
|
|
```html
|
|
<style>
|
|
.item1{background:LightSkyBlue;}
|
|
.item2{background:LightSalmon;}
|
|
.item3{background:PaleTurquoise;}
|
|
.item4{background:LightPink;}
|
|
|
|
.item5 {
|
|
background: PaleGreen;
|
|
/* add your code below this line */
|
|
|
|
|
|
/* add your code above this line */
|
|
}
|
|
|
|
.container {
|
|
font-size: 40px;
|
|
min-height: 300px;
|
|
width: 100%;
|
|
background: LightGray;
|
|
display: grid;
|
|
grid-template-columns: 1fr 1fr 1fr;
|
|
grid-template-rows: 1fr 1fr 1fr;
|
|
grid-gap: 10px;
|
|
}
|
|
</style>
|
|
|
|
<div class="container">
|
|
<div class="item1">1</div>
|
|
<div class="item2">2</div>
|
|
<div class="item3">3</div>
|
|
<div class="item4">4</div>
|
|
<div class="item5">5</div>
|
|
</div>
|
|
```
|
|
|
|
</div>
|
|
|
|
### Before Test
|
|
<div id='html-setup'>
|
|
|
|
```html
|
|
<script>
|
|
const hasCorrectSpacing = () => {
|
|
const contTwoPlusThreePlusGapWidth = $('.item2').width() * 2 + 10;
|
|
const item5Width = $('.item5').width();
|
|
const diff = Math.abs(contTwoPlusThreePlusGapWidth - item5Width);
|
|
/* To avoid rounding errors the largest allowed diff is set at 0.01px */
|
|
return diff <= 0.01;
|
|
};
|
|
</script>
|
|
```
|
|
|
|
</div>
|
|
|
|
</section>
|
|
|
|
## Solution
|
|
<section id='solution'>
|
|
|
|
|
|
```html
|
|
<style>
|
|
.item1{background:LightSkyBlue;}
|
|
.item2{background:LightSalmon;}
|
|
.item3{background:PaleTurquoise;}
|
|
.item4{background:LightPink;}
|
|
|
|
.item5 {
|
|
background: PaleGreen;
|
|
grid-column: 2 / 4;
|
|
}
|
|
|
|
.container {
|
|
font-size: 40px;
|
|
min-height: 300px;
|
|
width: 100%;
|
|
background: LightGray;
|
|
display: grid;
|
|
grid-template-columns: 1fr 1fr 1fr;
|
|
grid-template-rows: 1fr 1fr 1fr;
|
|
grid-gap: 10px;
|
|
}
|
|
</style>
|
|
|
|
<div class="container">
|
|
<div class="item1">1</div>
|
|
<div class="item2">2</div>
|
|
<div class="item3">3</div>
|
|
<div class="item4">4</div>
|
|
<div class="item5">5</div>
|
|
</div>
|
|
```
|
|
|
|
</section>
|