# (Squarespace) Change size of thumbnail in Summary Block

**URL:** <https://community.elfsight.com/t/squarespace-change-size-of-thumbnail-in-summary-block/101448>\
**Category:** Platform Tips\
**Tags:** squarespace\
**Created:** [February 16, 2025, 1:08am UTC](https://community.elfsight.com/t/squarespace-change-size-of-thumbnail-in-summary-block/101448 "2025-02-16T01:08:53Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![tuanphan](https://sea2.discourse-cdn.com/flex020/user_avatar/community.elfsight.com/tuanphan/32/3165_2.png) [@tuanphan](https://community.elfsight.com/u/tuanphan)\
**Post date:** [February 16, 2025, 1:08am UTC](https://community.elfsight.com/t/squarespace-change-size-of-thumbnail-in-summary-block/101448/1 "2025-02-16T01:08:53Z")

</div>

To change size of thumbnail in Summary Block, you can do these.

**#1.** First, find [Summary Block ID](https://community.elfsight.com/t/how-to-find-id-in-squarespace/65340).

In my example, it is: #block-yui\_3\_17\_2\_1\_1738493272859\_6666

 ![image](https://us1.discourse-cdn.com/flex020/uploads/elfsight/original/3X/8/3/833268027db40135f1d5b2cbf5f7de95f59487df.jpeg)

**#2.** Next, use this code to Custom CSS box.  
If code doesn’t work, you can comment below, [message](https://community.elfsight.com/u/tuanphan/) or [email me](mailto:info@beaverhero.com).

```auto
#block-yui_3_17_2_1_1738493272859_6666 .summary-thumbnail {
    padding-bottom: 35% !important;
}

```

 ![image](https://us1.discourse-cdn.com/flex020/uploads/elfsight/original/3X/0/d/0d1991ca7cf9772f517943cd5ee5a061674ecebe.jpeg)