Why is text not centered?

Question

css

welovepavel.esy.es/index.html
the maximum width should remain.

Answer 1

.welc {
  text-align: center;
}	

.welc p {
  margin-top: 20px;
  margin-bottom: 570px;
        /*или вместо первых 2-х строчек
        margin: 20px auto 570px;*/
  font-style: italic;
}

Answer 2

jsbin.com/kuxuya/edit?css,output

Answer 3

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