This is a line of regular text.

This line is in italics.

This line should also be in italics, but uses a star insted of an underscore.

This one is bold! Very bold!

Heading 1

Heading 2

Heading 3

Heading 4

Heading 5

Heading 6

KaTeX

This is some katex block.

\[ a^2 + b^2 = c^2 \newline a^2 = c^2 - b^2 \newline b^2 = c^2 - a^2 \]

Next is a blue box with something inside.

Line. Line. Line.

And some code:

a = 1
b = 2
c = 3

# a = float(input('Enter first side: '))
# b = float(input('Enter second side: '))
# c = float(input('Enter third side: '))

s = (a + b + c) / 2

area = (s*(s-a)*(s-b)*(s-c)) ** 0.5
print('The area of the triangle is %0.2f' %area)