2 columns in mobile applied to only 1 summary

Site URL: http://www.bbarinaga.com

Hello, I am on 7.0 and am attempting to simply make one individual summary list (grid) switch to 2 columns on mobile. 

I have used the following code and it works, but the change is applied to all summaries and I only need it for this one: https://www.bbarinaga.com/portadasebooks

@media screen and (max-width:640px) {

.sqs-block-summary-v2 .summary-item.positioned {

    width: 50% !important;

    position: static;

}

.sqs-block-summary-v2 .summary-item-list {

    display: flex;

    flex-wrap: wrap;

    flex-direction: row;

}

}

Can someone help me?

Site URL: https://www.bbarinaga.com/portadasebooks

https://www.bbarinaga.com/portadasebooks

password: 1234

Add to Page Settings . Advanced > Header

If you use Personal Plan > You can edit Page > Add Code Block

<style>
  @media screen and (max-width:640px) {
.sqs-block-summary-v2 .summary-item.positioned {
    width: 50% !important;
    position: static;
}
.sqs-block-summary-v2 .summary-item-list {
    display: flex;
    flex-wrap: wrap;
    flex-direction: row;
}
}
</style>

Thanks, @tuanphan.

I replied here: 

On 9/27/2020 at 4:53 AM, tuanphan said:

Add to Page Settings . Advanced > Header

If you use Personal Plan > You can edit Page > Add Code Block

Hi Tuanphan! It worked for me. I was trying to figure it out how separate a bit the columns. 

Thank you!

17 hours ago, RaulSantos said:

Hi Tuanphan! It worked for me. I was trying to figure it out how separate a bit the columns. 

Thank you!

You mean add space between columns?