discourse/app/assets/stylesheets/common/components/date-picker.scss

.pika-table {
  th,
  td {
    padding: 0 !important;
    border-top: none !important;
    border-bottom: none !important;
  }
}

.date-picker-wrapper {
  position: relative;
  display: inline-block;
}

.date-picker {
  text-align: center;
  width: 80px;
  margin: 0;
}

.pika-single {
  position: absolute !important;
}
update pikaday.js to latest and replace date inputs with pikadays 2016-04-15 23:58:32 +08:00			`.pika-table {`
DEV: adds prettier (#5956) Run `prettier --write "app/assets/stylesheets/*/.scss" "plugins/*/.scss"` after making sure you installed it with `yarn` It's recommended to configure your editor to run prettier on file save. 2018-06-08 17:49:31 +08:00			`th,`
			`td {`
update pikaday.js to latest and replace date inputs with pikadays 2016-04-15 23:58:32 +08:00			`padding: 0 !important;`
			`border-top: none !important;`
			`border-bottom: none !important;`
			`}`
			`}`

			`.date-picker-wrapper {`
			`position: relative;`
UX: Input and search cleanup (#5546) * Cleaning up input sizes * alignment * more alignment adjustments 2018-02-01 00:44:51 +08:00			`display: inline-block;`
update pikaday.js to latest and replace date inputs with pikadays 2016-04-15 23:58:32 +08:00			`}`

			`.date-picker {`
			`text-align: center;`
			`width: 80px;`
			`margin: 0;`
			`}`

			`.pika-single {`
			`position: absolute !important;`
			`}`