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How to apply custom CSS classes

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Thanks tuanphan,

I'm not sure I understand. I know I can inspect elements and add CSS classes to them, but how do you save it? As soon as I refresh the page, the class disappears from the element.

This is what I have as my custom CSS:

.xxx {
    color: green;

How do I add xxx to a <span> element permanently?

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30 minutes ago, e2astudio said:

The only way to add a custom class to an element is to add the element yourself using a Code Block. 

You mean by injecting javascript code?

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59 minutes ago, Gibran said:

You mean by injecting javascript code?

No. Generally, there are two ways to customize page elements with CSS.

  1. The method @tuanphan is describing (inspect a Squarespace element and find the class already assigned by the system or template, then override or add styles to that specific class in Design -> Custom CSS)
  2. Add your own custom class with styles in Design -> Custom CSS and then add a Code Block containing the HTML with your custom class assigned.
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  • 2 years later...

Hello I have title on top like this. How can I make the text slider? Because I can not add slider class to div.

@media screen and (min-width:641px) {
.Header-inner.Header-inner--top {
 div {
  font-weight: bold;
  position: relative;
  font-size: 50px;
padding: 10px;
text-align: center;
background:  #FF0099;
color: white;

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  • 3 months later...
On 1/9/2023 at 11:55 AM, Reflexeon said:

@tuanphan Hi how do I find my class code for my website?


Use Inspect element. What is your problem? We can help easier.

Email me if you have need any help (free, of course.). Answer within 24 hours. 
Or send to forum message

How to: Setup Password & Share url Insert Custom CSS - Page Header - Upload Custom Font - Upload File - Find Block ID - Contact Customer Care

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