how to make writings to align horizontally in html code example

Example 1: how to align elements horizontally in css

.row {
  width: 100%;
  display: flex;
  flex-direction: row;
  justify-content: center;
}
.block {
  width: 100px;
}

Example 2: html align right

<p style="text-align:right;">Example</p>

Example 3: align centre

.headerTwoDiv{
			margin:1% auto;
			margin-right: auto; margin-left: auto; width: 21%; 
			padding-top: 11px;
		}

Example 4: how to center text in html

<p><center>YourText</center></p>