How to change theme width

please check your link and make sure your site is live.

what theme are you using?

do you just need a wide page for the player or a wider site general?

Yes it is live now and the Theme Name: MH Magazine lite
Theme URI: https://www.mhthemes.com/themes/mh/magazine-lite/

the player should look like the player here https://legionbeats.com/

but its not allowing me enough room so the player stretch from left to right

Hi,

Please add this css and it will show https://beatzgofed.com/beat-store/ as full width only.

.page-id-21 .mh-right-sb #main-content {
    float: left;
    margin-right: 2.5%;
}

Thank you.

Ok thanks alot where do I go into to add the css?

should it look like this ..i have tried that but still not working

/*
Welcome to Custom CSS!

To learn how this works, see https://wp.me/PEmnE-Bt
*/
.page-id-21 .mh-right-sb #main-content {
float: left;
margin-right: 2.5%;
}

Please navigate to Appearance->Editor and add above css at bottom of page. https://prntscr.com/b7g5t9