html id

1<p id="newid">this is the id</p>
2
3<style>
4#newid {
5  background-color: green;
6  text-align: center;
7}
8</style>

1<style>
2  #test {
3  /*Styleing here*/
4  }
5</style>
6<h1 id="test"></h1>

1<style>
2#grepperHeader {
3  background-color: lightblue;
4  color: navy;
5  padding: 40px;
6  text-align: center;
7}
8</style>
9
10<h1 id="grepperHeader">grepperHeader</h1>