There are a number of ways in which content can be aligned in Experios.
To align content horizontally within a row, you can add left and right padding to the row in order to push the column(s) away from the row edges.
At the column level, the content can be aligned using the Align Content dropdown menu in the Settings section of the Properties Control Column. By default, this dropdown will control vertical alignment. If you want to align your content vertically, check the Vertical Alignment checkbox underneath the Align Content dropdown.
For example, to vertically center all content in the container, select center, and ensure that the Vertical Alignment checkbox is checked. This will stack all elements within the column, and position them in the centre.