How do i make the plus sign in my screen look like the minecraft plus sign?

 

example:

 

If it isn't already the same, you are probably on a server and/or using a texture pack that changes it. The crosshair hasn't changed since it was introduced to Minecraft.

but it isnt the same for me

 

"you are probably on a server and/or using a texture pack that changes it."
That or you are using the Steam or Web version that uses the new Mojang free textures.
If you are using Steam, you could edit the default.zip file in the /texpacks/ folder to change your default crosshair.

no it isnt

its in every game 

its only for some maps

its maybe cause im using the online version