body {
background-color: aqua;}
h1 {
text-align: center;}
h3 {
text-align: center;}
p {
text-align: center;}
img {
display: block;
margin-left: auto;
margin-right: auto;}
textarea {
display: block;
margin-left: auto;
margin-right: auto;}
input {
display: block;
margin-left: auto;
margin-right: auto;}
table {
margin-left: auto;
margin-right: auto;}