A brief information note will be provided through a short banner that should disclose the purpose of installation of cookies that the site uses. The banner must be sufficiently discontinuous from the user experience of navigating the site in order to make sure it gets noticed by the user. Among the examples provided by the Authority there are both a version in the middle of the page and a solution with a strip at the top of the site.
In accordance with general principles of privacy legislation, which prevent the treatment before consent, the Cookie Law does not allow the installation of cookies before obtaining prior consent, except for the exempt categories that will be explained below. In practice, this means that, for example, codes that link banners or simply codes that handle live chat can not run before obtaining prior consent (which, we repeat, is also obtainable by simply scrolling). Adaptation to this law will unfortunately be challenging for many sites and requires changes to the code of the site.
The Authority has been very clear in this regard and you need to adapt if you want to respect the law.
Fortunately, some cookies are exempt from consensus and therefore are not subject to the preventive block. Technical cookies, which are those needed to provide the service, including cookies of preference, session, load balancing and so on. Statistics cookies managed directly by the owner, for example through softwares like Piwik; There has lately been an opening of the Authority - albeit unofficial - to consider as exempt from the consent also statistical cookies used by third party (eg. Google Analytics), but only if the data is anonymised before being saved by the third service.