style.css

@import url('https://fonts.googleapis.com/css2?family=Roboto&display=swap');

body {
  background-image: url("images/background_image.jpg");
  font-family: 'Roboto', sans-serif;
  color: whitesmoke;
}

main {
  margin: auto;
  text-align: center;
  background-color: hsla(0, 0%, 0%, 0.5);
  padding: 2em;
  border-radius: 10px;
}

.textbox {
  margin: auto;
width: 450px;
height: 50px;
}

#mainbox {
  background-color: hsla(0, 0%, 0%, 0.8);
  padding: 50px;
  margin: 5em auto;
  width: 500px;
  text-align: left;
}

#content-type {
  width: 450px;
  height: 40px;
}

.submit {
  padding: 10px;
  padding-right: 20px;
  padding-left: 20px;
  border-radius: 50px;
  background-color: red;
  text-align: center;
  border: 0px;
  color: whitesmoke;
}
#comment{

width: 450px;
}

#center{
  text-align: center;
  font-size: 40px;
}