Hi Yang,
This can be done with classes:
The layout grid 'breaks' based on screen size, which can be manipulated in your styling.
To force it to stay the same however, add the above classes to the layout grid columns. In this example I have 3 columns, with width 4. These classes basically mean: take 4/12 width when screen is medium (md), and the same for small (sm) and extra small (xs). Alternatively, you could use a table: these distribute width without taking screen size in consideration.
For more documentation on the grid system see the official Bootstrap documentation: https://getbootstrap.com/docs/3.3/css/
The class works great! Thanks.