How can I add margins to my Debut theme on desktop view?

Store Design
11

@AlexandraM93

can you please try this code

  1. Go to Online Store->Theme->Edit code
  2. Asset->/theme.css ->paste below code at the bottom of the file.
#shopify-section-163515292265ed76ba .slideshow-wrapper {
max-width: 1250 px ;
 margin: 0 px auto;
}
#shopify-section-163515292265ed76ba .slideshow__image {background-size: contain;}