# Customization Property

{% hint style="info" %}
Note that for the customization property to work, the Show Customization Option in the theme settings must be active first.  
{% endhint %}

<figure><img src="https://3875480980-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F8KVBTL14Wsr30Mq5W8PK%2Fuploads%2F9RvSVlTPLHlYncTjnAhj%2Fimage.png?alt=media&#x26;token=5d7174c1-2828-4485-8c3e-02b12f66b7a6" alt=""><figcaption></figcaption></figure>

| Setting              | Description                                       |
| -------------------- | ------------------------------------------------- |
| Spacing top / bottom | Determine the spacing top and bottom of the block |