![valid/invalid custom select reverts to default border color on focus · Issue #24553 · twbs/bootstrap · GitHub valid/invalid custom select reverts to default border color on focus · Issue #24553 · twbs/bootstrap · GitHub](https://user-images.githubusercontent.com/2781561/32022894-209e93e8-b9ae-11e7-86c0-f4b78dad5ba7.png)
valid/invalid custom select reverts to default border color on focus · Issue #24553 · twbs/bootstrap · GitHub
![Option to remove the thick bottom border from `thead` and top border from `tfoot` in table element · Issue #35342 · twbs/bootstrap · GitHub Option to remove the thick bottom border from `thead` and top border from `tfoot` in table element · Issue #35342 · twbs/bootstrap · GitHub](https://user-images.githubusercontent.com/4362224/140979914-11e95ecc-73a0-4b54-bdfd-05d839d57ac1.png)
Option to remove the thick bottom border from `thead` and top border from `tfoot` in table element · Issue #35342 · twbs/bootstrap · GitHub
![css - (Bootstrap 4) Card borders rendered bad/different when used together with bg-color - Stack Overflow css - (Bootstrap 4) Card borders rendered bad/different when used together with bg-color - Stack Overflow](https://i.stack.imgur.com/w51je.png)
css - (Bootstrap 4) Card borders rendered bad/different when used together with bg-color - Stack Overflow
![css - (Bootstrap 4) Card borders rendered bad/different when used together with bg-color - Stack Overflow css - (Bootstrap 4) Card borders rendered bad/different when used together with bg-color - Stack Overflow](https://i.stack.imgur.com/2zJtR.png)