Impulse theme change filter button to white

[Luxurymrkt]

Hi,

id like to change my filter Hutton to white with same color a outline as grid border

my site is https://luxurymrkt.com/collections/newest-products. Like the pic below thank you

[Denishamakwana]

Please add below css code in bottom of assets/theme.css file

.collection-filter select {
background-color: #fff !important;

}
Thank you.