body {
  min-height: 100vh;
  background-image: url("Dog Circle.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;

  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.maincontent {
  text-align: center;
  margin: 5em;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}
h1 {
  margin-bottom: 1.25em;
  color: darkgoldenrod;
  font-weight: 900;
}
input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 0.625em;
  border-radius: 0.7em;
  box-sizing: border-box;
}

input[type="submit"] {
  width: 100%;
  padding: 0.625em;
  margin-top: 0.625em;
  cursor: pointer;
  background-color: wheat;
  color: black;
  font-weight: bold;
  font-size: medium;
  border-radius: 0.7em;
}
input::placeholder {
  font-weight: bold;
}
#message {
  font-weight: bold;
  color: darkgoldenrod;
  font-size: larger;
}
.screenreader {
  position: absolute;
  width: 0.063em;
  height: 0.063em;
  padding: 0;
  margin: -0.063em;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}