The content width of a blurb is 550px by default, so on an iPad, it doesn’t cover the full width of the screen, causing a left and right gap.

To fix this, set the content width to 100% for mobile devices on the design tab.

Or, alternatively, use the following CSS:

/* -- START fix blurb image width on iPad -- */
.et_pb_blurb_content {
max-width: 100%;
}
/* -- END fix blurb image width on iPad -- */Code language: CSS (css)