How do I edit collage Image Card Mobile version in Bedford template?

Site URL: https://www.haitisoleil.org/

Hello,

I added added a collage image card on the homepage. Looks great on desktop, unfortunately in mobile it is super tiny.  How do i edit the collage so image and text are the size i need them to be? 

I am using this code to have the text below the image.

@media (max-width:640px){
  .sqs-block-image .design-layout-collage.sqs-narrow-width .image-card-wrapper{
    width:100%;
    margin-top:calc(0%)!important;
    position:relative}
  .sqs-block-image .design-layout-collage.sqs-narrow-width.image-position-right .intrinsic,.sqs-block-image .design-layout-collage.sqs-narrow-width.image-position-left .intrinsic{
    left:5%
  }
}

I would like to have the image and text size match that of the image and text above.  attached screenshot of mobile version. 

thanks in advance.

Add to Home > Design > Custom CSS

@media screen and (max-width:640px) {
div#vision .index-section-wrapper {
    width: 100%;
    margin: 0 !important;
    padding: 0;
}
}

Perfection!!!! so simple. Thank you so much Tuanphan!

I see your site has 2 scroll bar...