These letters are written in large bold print.

LIF

Next puzzle:

A bold diagonal line going from right to left.

The second is the universal symbol of NO.

To understand the letters and the diagonal line puzzle, we need to analyze each part individually.

1. The letters "LIF" written in large bold print:
Based on the description provided, the letters "LIF" are written in large bold print. This suggests that the letters are displayed in a visually distinct manner, with a bigger size and thicker lines compared to regular text. It's important to note that no specific question was stated regarding these letters, but if you have a specific question, feel free to ask!

2. The bold diagonal line going from right to left:
Again, no specific question was asked about the diagonal line puzzle, but we can still explain more about it. A diagonal line is a line segment that connects two non-adjacent corners of a shape or crosses over other elements at a slanted angle. In this case, the diagonal line goes from right to left, indicating it slopes downward when moving from the right side of the shape to the left side. However, without further context or details, it is difficult to provide a specific answer or question related to the puzzle.

If you have any specific questions or need further clarification, please let me know!