/*body,h2,p,input are html tags */
/*.hello and #test are html class and id attributes*/
body {
background-color: blue;
}
h2 {
color: grey;
text-align: center;
}
p {
font-family: Sans-serif ;
font-size: 30px;
}
input{
width:50%;
}
.hello{
color:red;
}
#test{
color:blue;
}