:root {  
	--bs-border-radius: 0;  
}  

.main_pane {  
	border-radius: 0;  
}  

.card {  
	border: solid 1px #ddd;  
	border-radius: 0;  
}  

.card-header {  
	border-radius: 0;  
}  

.post_list .post_teaser .thumbnail img, .post_teaser_image_preview img {  
	border-radius: 0;  
}  

.main_pane {  
	border-radius: 0;  
}  

.card {  
	border: solid 1px #ddd;  
	border-radius: 0;  
}  

.card-header {  
	border-radius: 0;  
}  

.post_list .post_teaser .thumbnail img, .post_teaser_image_preview img {  
	border-radius: 0;  
}