Multirow image sizing to make fullscreen (homepage)

[PhMA]

dear community,

Im using refresh theme but i do not like that there multirow or text with image sections are always displaying the images in some sort of square/box/card structure, I would like to have the images go fullscreen until the edge of the device. how can I

A) change this behavior for the entire theme

or only

B) change it for a particular section

current screenshot shows it from homepage

C) how can I change the text font size for only 1 particular section how to increas it

D) change the font size for paragraph for the entire theme -> what will happen on mobile? will mobile use a different font size automatically that fits the smaller screen?

many thanks

preview: https://ywj95ufem1ian0t3-61049766108.shopifypreview.com

[BSSCommerce-B2B]

@PhMA , if you can't find any settings in your customize. Follow these to custom your section

Step 1. Go to Admin -> Online store -> Theme > Edit code

Step 2. Find the file theme.liquid.

Step 3. Add this code above </body>

<style>
.section-template--18349959971036__multirow_98qgrd-padding .image-with-text:nth-child(2) .image-with-text__grid {
   flex-direction: column;
}
.section-template--18349959971036__multirow_98qgrd-padding .image-with-text:nth-child(2) .image-with-text__media-item {
   width: 100%;
}
.section-template--18349959971036__multirow_98qgrd-padding .image-with-text__text.rte.body li {
   font-size: 20px /*Change it to increase the font size text*/
}
</style>

[PhMA]

many thanks but I like to have it full screen until the border of the screen

plus can you help me for 

A)

B)

C)
D)

?

many thanks

[PhMA]

@BSSCommerce-B2B  would you have a solution for the other questions A, B, C, D  ?

https://9tg6kkf1xizmk3xe-61049766108.shopifypreview.com