Revert "not a good idea"

This reverts commit 6b71be4034b329617f89b10c5999493cab99120d.
Revert "Revert "not a good idea""

This reverts commit ce21179cbca25319cbd9de0eb1d546a5c77f0f37.
Revert "Revert "Revert "not a good idea"""

This reverts commit 379c6564b0fd2c2537420e6cc0066baf7e4b4541.
Added scroll function to triangle (and side bar)