Cells may span several rows or columns. (Although CSS 2.1 does not define how the number of ... Don't think of CSS tables exactly the same as HTML tables. ... <看更多>

I really recommend describing styles in CSS, not in HTML by classes. So, Autoprefixer grids are not “out of box” feature. You will need to learn ... ... <看更多>

grid-column-span. Summary. See css/properties/grid-column. This property has been removed from the specification. Overview table. ... <看更多>

Assuming you want to do this in a table, you would use the colspan attribute of <apex:column> . Quoting from the documentation, colspan represents:. ... <看更多>