<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<style>
#main{
background-color: red;
width:300px;
height:400px;
}
#content{
background-color: pink;
width:150px;
height:200px;
}
</style>
<body>
<script>
function t1(){
console.log(name);
var name = "alex";
}
t1();
// function t1(age){
// console.log(age); // function age()
// var age = 27;
// console.log(age); // 27
// function age(){}
// console.log(age); // 27
// }
//
// t1(3);
</script>
</body>
</html>
