HOTSPOT
You create a custom style by using CSS3.
A box with rounded corners must appear around text. The box must match the following illustration:
You need to add the CSS3 markup to your style.
How should you complete the relevant CSS styles? (To answer, select the appropriate option from
each drop-down list in the answer area.)
Answer: 
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box-sizing:border-box; does not make any fucking sense. http://jsfiddle.net/6quqovfr/196/
Weird, because when I open your fiddle (chrome) it works fine. I do agree that it’s stupid tho :p
I think it should be:
1. display: inline;
2. border-radius: 10px;
Nope, it is:
p {
border:solid;
border-radius:10px;
box-sizing:border-box;
}