*{
  padding: 0;
  margin: 0;
  text-align: center;
}

.main{
  width: auto;
}

.block{
  width: 800px;
  margin: 50px auto;
  padding: 50px;
  background-color: lightgray;
  border-radius: 30px;
}

img{
  margin: 20px auto;
  width: 700px;
  border: solid 5px gray;
  border-radius: 20px;
}

.form{
  width: 400px;
  height: 30px;
  font-size: 20px;
}

.button{
  width: 120px;
  height: 30px;
  font-size: 20px;
}

.message{
  font-size: 25px;
}

::placeholder{
  color: coral;
}