Desk Mount for Two Monitors 13"-32" max 8 kg, Tilt-Swivel, with Rotation, Black G140. main content container { display: webkit box; display: ms flexbox; display: flex; ms flex wrap: wrap; flex wrap: wrap; webkit box pack: center; ms flex pack: center; justify content: center; width: 100%; } #content layout { width: 100%; font size: 16px; } iframe { width: 100%; margin bottom: 30px; border radius: 16px; } . layout header { position: relative; display: webkit box; display: ms flexbox; display: flex; webkit box orient: vertical; webkit