How will i be able to make the header span through its entire width

HTML-CSS
1

landingpg
landingpg1366×768 114 KB

landingpgS
landingpgS1366×768 122 KB

landingpgSA
landingpgSA1366×768 107 KB

Dear coders, please help resolve this. I have been working all day to make the header span through the entire width with no success. How do i resolve this. someone please help please
.

2
3

Hello! Did you try this:
#header{
width:100%; entire width of parent/containing element
}

or

#header{
width:100vw; entire width of viewport
}

4

Oh wow, the second option worked. Thanks alot.

5

You’re welcome. Glad I was able to help.