$(window). all activity in the browser window

function is what is being run when event happens

value of scrollTop
var scrollAmt= $(window).scrollTop() = "px"

$(".ball"). css ("height","200px") .css ("width",200px") becomes
$(".ball"). css ("height",scrollAmt) .css ("width",scrollAmt)
cacatination hello = world= helloworld

$(window).resize(function() {
console.log ("you resized it");
$(window.width();
$(window.height();
});

transform=translate(-50%,-50%)

var person= {name: "Brendan"}
so person.name would give back brendan in console

timestamp jquery