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Using Inline CSS in HTML Emails- The Essential Guide

Inline CSS In HTML Emails

Crafting an HTML email that lands all the right punches is no child’s play. Sure, it allows you to deliver a user experience par none, but not without first demanding an incredible volume of hard yards from you. If you were to picture an HTML email as one giant machinery, you’d be remiss not to regard the several constituent nuts and bolts that keep it in place, i.e., the best practices that are followed while developing one. 

Among these crucial components is CSS or Cascading Style Sheets. CSS, in email, dictates how various HTML elements, like tables, images, colors, buttons, and the like appear in the email. Moreover, it also enables you to introduce animations and effects to your templates. In a nutshell, it breathes life into your modular email templates, laying the foundation for increased engagement and interactions.

Here’s a comparative look of how an email looks with and without the inline CSS property.

With CSS:

Without CSS:

Despite its ceaseless charm, however, implementing CSS in HTML emails is far from rosy. Why, you ask? Because the prevalent email clients in the market don’t offer uniform support for CSS. So, if you’re not mindful of these limitations, you’ll end up inviting an undesirable pageant of formatting and rendering issues. 

The easiest way to reign in these issues is by using inline CSS. What is that now? You see, there are three ways in which CSS can be written in an HTML document: external, embedded, and inline. Thus, in order for us, to have the due context regarding inline CSS, it is necessary that we first gain a basic understanding of all the three methods. 

Understanding the Different Types of CSS

Advantages of using Inline CSS

As we mentioned earlier, despite its many pros, inline CSS can be a huge drain on your time and severely disfigure the structure of your code. To keep these problems at bay, we use inliner tools, also the subject of our next segment. Let’s take a look.

Best CSS Inline Tools For Email

Although coding is a crucial aspect of an HTML email, never lose sight of the fact that it is, at the end of the day, one of many such important factors. Should you remain fixated on it, you risk neglecting other considerations necessary to develop a top-notch HTML template. Inlining your CSS is one task that can take an inordinate amount of your time, leaving you with pity change for attending to the other critical pillars. Thankfully, inliner tools exist. Below, we take a look at some of the best ones in operation.

Mailchimp CSS Inliner

Litmus PutsMail CSS Inliner

Campaign Monitor CSS Inliner

Additionally, Campaign Monitor also provides a CSS guide with the help of which users can choose from different email clients across mobile, desktop, and web to determine which CSS elements will work.

Responsive Email CSS Inliner

Few Best Practices to Keep in Mind While Using CSS in HTML Emails

Embracing inline CSS in favor of external and embedded CSS isn’t the sole way to maximize the impact of CSS in your HTML emails. Let’s take a look at some other ways.

Wrapping It Up

The potential of email as a communication channel is secret to none. To harness its true potential, you must work towards increasing the user experience of your email campaigns. This is what using CSS helps you with, so long you inline. Along with illustrating the virtues of this technique, we hope we have also been able to make you consider embracing the tools listed above. They’re sure to fast-track your development process!

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