cssborder-collapse

The `border-collapse` property in CSS is used to specify how the borders of table elements should be collapsed. This property is commonly used in tables to control the spacing and alignment of table borders.

When the `border-collapse` property is set to `collapse`, the borders of adjacent table cells will collapse into a single border, creating a more seamless and clean appearance. This can be especially useful when dealing with tables that have cell borders that are adjacent to each other.

On the other hand, when the `border-collapse` property is set to `separate`, each table cell will have its own distinct border, with no collapsing occurring between adjacent cells. This can create a more distinct and visually separated look for table elements.

In most cases, the default value for the `border-collapse` property is `separate`, meaning that each table cell will have its own border. However, setting it to `collapse` can be useful in certain situations where a more seamless appearance is desired.

One common use case for the `border-collapse` property is in creating more visually appealing and consistent table layouts. By collapsing the borders of adjacent cells, you can create a more uniform look for your tables, which can improve the overall aesthetics of your website.

Another benefit of using the `border-collapse` property is that it can help to improve the performance of your website. By collapsing the borders of adjacent cells, you can reduce the number of border elements that need to be rendered, which can improve loading times and reduce the overall size of your web pages.

It is important to note that the `border-collapse` property only applies to table elements in CSS. Other elements, such as divs or spans, do not have borders that can be collapsed in the same way. Additionally, the `border-collapse` property only affects the spacing and alignment of borders, and does not impact other styles such as padding or margins.

Overall, the `border-collapse` property is a useful tool for controlling the appearance of borders in table elements. By using this property, you can create more visually appealing and consistent table layouts, while also potentially improving the performance of your website.