How can I build a real masonry layout (Pinterest layout) using Webflow and pure CSS without falling for the ineffective CSS columns hacks?

To create a real masonry layout (also known as a Pinterest layout) in Webflow using pure CSS without relying on outdated CSS column hacks, you can utilize the power of CSS Grid.

Here's a step-by-step guide to help you accomplish this:

Step 1: Structure your HTML
Start by structuring your HTML to represent the individual grid items or "cards". You can use the standard Webflow grid structure or a custom div structure. Each card should have a consistent height but may have varying widths.

Step 2: Set up the grid container
Create a container div that will hold all the grid items. Apply the CSS property `display: grid;` to this container. This turns it into a grid container, ready to store your items.

Step 3: Define grid columns
Specify the number of columns you want in your masonry layout. You can set this value as percentages, fraction units, or auto for automatic scaling. For example, if you want a three-column layout, you can use `grid-template-columns: repeat(3, 1fr);`.

Step 4: Set row height
To achieve the masonry effect, it's necessary to define the row height as `auto`. This allows each item to have its own height based on its content, resulting in the desired overlapping effect.

Step 5: Position the grid items
By default, CSS Grid will place each grid item in the necessary cells to form the defined columns. However, we want the items to overlap and form the masonry effect. To achieve this, you need to use the `grid-row` and `grid-column` properties on each item.

For example, you can set the first card to span two rows and two columns like this:
```
.card-1 {
grid-row: span 2;
grid-column: span 2;
}
```

Each card can have different span values to create the desired layout. You can adjust these values according to your design.

Step 6: Fine-tuning
You can further enhance the layout by adding some margin or padding between the grid items to provide better spacing. You can also apply transitions, animations, or other CSS effects to make the masonry layout visually engaging.

By following these steps, you can successfully create a real masonry layout in Webflow using pure CSS without relying on ineffective CSS column hacks. Remember to experiment with different values and adjust them to achieve your desired design aesthetic.