CSS Column Span Property Lab
Medium
132
14
45.5% Acceptance
Overview
In this interactive lab, you will build a multi-column layout using CSS and manipulate it with JavaScript. You will work specifically with column-span
and column-count
properties. The final output will consist of six boxes, out of which the third box will span across two columns, and the column-count can be changed dynamically using a JavaScript function.
Concepts
- CSS multi-column layout: Provides a way of creating layouts with columns, just like you'd see in some traditional newspapers and magazines.
column-span
property: Allows an element to span across multiple columns in a multi-column layout.column-count
property: Specifies the number of columns an element should be divided into.
Steps
- Start by creating an HTML structure. Your HTML should have a parent
div
with anid
of 'container'. Inside this containerdiv
, create six childdiv
elements each having class 'box'. - Make use of CSS to style your HTML elements. You will need to apply a
column-count
of 2 to your container, which will make the child boxes display in two columns. - To make one of the box elements span across two columns, select the third
div
box and apply acolumn-span
of 'all'. - Lastly, write a JavaScript function
changeColumnCount
that takes an integer as a parameter. This function should change thecolumn-count
of the 'container' div to the passed integer.
Examples
The following is a basic example of how you can apply column-count and column-span CSS properties:
<div id="container"> <div class="box"></div> <div class="box"></div> <div class="box"></div> </div>
#container { column-count: 2; } .box { column-span: all; }
In the above example, all boxes will span across two columns.
Hints
- Use the
getElementById
method in your JavaScript function to select the 'container' div. - You will need to manipulate CSS properties using JavaScript. This can be done accessing the
style
property of your selected element, like so:document.getElementById('elementId').style.cssPropertyName
.
Remember to think this lab in terms of boxes (div elements) and how you can manipulate their distribution across multiple columns, both statically with CSS and dynamically with JavaScript.