Style Binding & NgStyle in Angular 2

Published on October 24, 2016


Style Binding & NgStyle in Angular 2

While we believe that this content benefits our community, we have not yet thoroughly reviewed it. If you have any suggestions for improvements, please let us know by clicking the “report an issue“ button at the bottom of the tutorial.

It’s easy to bind inline style in your Angular 2 templates. Here’s how you would bind a single style value for example:

<p [style.background-color]="'darkorchid'">
  Quite something!

You can also specify the unit, here for example we set the unit in em, but px, % or rem could also be used:

<p [style.font-size.em]="'3'">
  A paragraph at 3em!

And here’s how you would conditionally set a style value depending on a property of the component:

<p [style.font-size.px]="isImportant ? '30' : '16'">
  Some text that may be important.

NgStyle for multiple values

Simple style binding is great for single values, but for applying multiple styles the easiest way is to use NgStyle:

<p [ngStyle]="myStyles">
  You say tomato, I say tomato

And then myStyles would be a property in the component that contains an object with css property names as the keys, like this:

myStyles = {
'background-color': 'lime',
'font-size': '20px',
'font-weight': 'bold'

Or it could be provided inline like this:

<p [ngStyle]="{'background-color': 'lime',
    'font-size': '20px',
    'font-weight': 'bold'}">
  You say tomato, I say tomato

Or the object can be the return value of a method:

<p [ngStyle]="setMyStyles()">
  You say tomato, I say tomato

In the associated component class

setMyStyles() {
  let styles = {
    'background-color': this.user.isExpired ? 'red' : 'transparent',
    'font-weight': this.isImportant ? 'bold' : 'normal'
  return styles;

See Also

Thanks for learning with the DigitalOcean Community. Check out our offerings for compute, storage, networking, and managed databases.

Learn more about us

About the authors
Default avatar


Still looking for an answer?

Ask a questionSearch for more help

Was this helpful?
Leave a comment

This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

Try DigitalOcean for free

Click below to sign up and get $200 of credit to try our products over 60 days!

Sign up

Join the Tech Talk
Success! Thank you! Please check your email for further details.

Please complete your information!

Featured on Community

Get our biweekly newsletter

Sign up for Infrastructure as a Newsletter.

Hollie's Hub for Good

Working on improving health and education, reducing inequality, and spurring economic growth? We'd like to help.

Become a contributor

Get paid to write technical tutorials and select a tech-focused charity to receive a matching donation.

Welcome to the developer cloud

DigitalOcean makes it simple to launch in the cloud and scale up as you grow — whether you're running one virtual machine or ten thousand.

Learn more
DigitalOcean Cloud Control Panel