How to make a backround/mouse

body {
background-attachment: fixed;
background-image: url();
background-position: center;
background-size: cover;

}
html {
cursor: url(),auto!important;
}

To put a image inside the backround or the mouse do copy image adress then put the link in the () spot next to the url I reccomend using https://www.cursors-4u.com/ to find a cursor and not google or somethin