Python

x = 10

if x > 5:
  print("x is greater than 5")
  if x % 2 == 0:
    print("x is even") # Nested code block
def function(x):
  return

JavaScript

function helloWorld() {

  console.log('hi!', true)
}

CSS

.box {

  text-align: center;
  width: 100%;
  color: #00FF00 !important;
}