How to remove outside borders of a 3x3 grid using CSS, e.g. Tic-Tac-Toe UI
source link: https://dev.to/pat_the99/how-to-remove-outside-borders-of-a-3x3-grid-using-css-e-g-tic-tac-toe-ui-4ao8
Go to the source link to view the article. You can view the picture content, updated content and better typesetting reading experience. If the link is broken, please click the button below to view the snapshot at that time.
How to remove outside borders of a 3x3 grid using CSS, e.g. Tic-Tac-Toe UI
May 25
・1 min read
I was trying to achieve this kind of UI when I tried implementing the Tic-tac-toe game (I know it looks easy to some XD)
The challenge was how to properly select the first and last column, as well as the first and last row. I seriously did not want to manually remove the borders of the eight cells.
The data structure of my tic-tac-toe grid is not two-dimensional, but one, so I can easily do the tricks below. Think of my counting as this :
0 | 1 | 2
3 | 4 | 5
6 | 7 | 8
For the first row, the top border should be removed, thus:
.board-item:nth-child(-n + 3) {
border-top: none;
}
For the last column,
.board div:nth-child(3n) {
border-right: none;
}
For the first column,
.board-item:nth-child(3n - 2) {
border-left: none;
}
For the last row,
.board-item:nth-child(n + 7) {
border-bottom: none;
}
And that is it. Thanks for reading. Check my tic-tac-toe game here.
Recommend
About Joyk
Aggregate valuable and interesting links.
Joyk means Joy of geeK