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AI solution for CSS coding question on BFE.dev
17. fragment style

.border { line-height: 1.5; margin: 5px; display: inline-block; border-color: #7aa4f0; border-style: solid; border-width: 1px; padding-left: 5px; padding-right: 5px; } .border:first-letter { border-top-width: 0; } .border:last-letter { border-bottom-width: 0; }

Explanation: 
1. We set the display to `inline-block` to allow the border to be applied to each fragment separately.
2. We set the border properties to `solid` with a `1px` thickness and the color `#7aa4f0`.
3. We add `5px` of padding on the left and right of each line.
4. We remove the top border from the first fragment and bottom border from the last fragment using `:first-letter` and `:last-letter` pseudo-classes.