Could be your monitor has given up the ghost, the only sure way to find out is try it on another PC. Could be your graphics card has come loose. Open up your PC and gently but firmly push down on the card to see if it needs re-seating.
Honor 9 Lite review
How Social Media has Propelled Political Graphic Design and Art in the Last Decade
The best kids apps for iPhone & iPad 2018
HomePod d’Apple : date de sortie, prix et fiche technique