How to get full mobile width on mobile devices with no paddigns:

1. Get the css - only if you have not included Toolkit.css or Starter.css

/* Mobile view full width start */

.static-lp-main-wrapper {
  margin: 1rem auto 1rem auto;
  max-width: 1180px;
}

.static-lp-main-wrapper > .container {
  padding-left: 0 !important;
  padding-right: 0 !important;
  /* remove if background no needed */
  background-color: var(--main-theme-color) !important;
}

.static-lp-main-wrapper * {
  box-sizing: border-box;
}

/* Mobile view full end */
2. Go to strapi

Now in Strapi go to your static page and add the classNamestatic-lp-main-wrapper in the script field

Strapi script field