Re:Defensive CSS
by dspillett on Friday December 10, 2021 @03:59AM
(#29507884)
It is a fairly new property so it may be a while before it is ubiquitous (the MDN page links to a ticket for implementing it is Firefox where it is not yet present at all, for instance).
As it is a property to reduce visual artifacts (as content length changes) it is a safe one to specify and have ignored where not supported: users of other browsers will just not get that minor benefit until the browser catches up. This may be a problem if you are trying to achieve perfectly identical presentation to all users, but you've got a lot of problems coming your way too if that is one of your goals!
A browser not supporting this property of you user it is not going to break a design, not to the point of causing functionality or usability issues, unless you are doing something very strange and complex.
As it is a property to reduce visual artifacts (as content length changes) it is a safe one to specify and have ignored where not supported: users of other browsers will just not get that minor benefit until the browser catches up. This may be a problem if you are trying to achieve perfectly identical presentation to all users, but you've got a lot of problems coming your way too if that is one of your goals!
A browser not supporting this property of you user it is not going to break a design, not to the point of causing functionality or usability issues, unless you are doing something very strange and complex.