pointer-events

pvz: absolute rodykle uzdedama ant select elemento ir 
pointer-eventsnone;
Rezultatas: paspaudus ant rodykles, atsidaro select elementas

useradd & adduser

https://www.tecmint.com/add-users-in-linux/

useradd username

also creates user & home dir (better use this command)
adduser username

To grant sudo privileges to a user type (as root user):
usermod -a -G sudo username

Change user
su - username

Open Sudoers file ( /etc/sudoers.d/ )
sudo visudo

Set no sudo passwords in sudoers.d (at end of file)
username ALL=(ALL) NOPASSWD: ALL

As a regular user with sudo privileges, you can delete a user using this syntax:
sudo deluser --remove-home username

must know commands

docker --version
docker version

Pull the hello-world image from Docker Hub and run a container:
docker run hello-world

docker image ls
docker container ls
docker container ls --all

Pull an image of the Ubuntu OS and run an interactive terminal inside the spawned container:
docker run --interactive --tty ubuntu bash

Pull and run a Dockerized nginx web server that we name, webserver: 
docker run --detach --publish 80:80 --name webserver nginx
arba
docker run -d -p 80:80 --name webserver nginx

shows docker IP
docker-machine ip Default

docker stop webserver
docker start webserver

docker rm webserver