*{margin: 0; padding: 0; }

body{

    background: rgb(96, 97, 96);
    background-repeat: repeat;
}
h1{
    text-align: center;
} 

 .container {
    width: 300px;
    margin: auto auto;
  }
.input1{
    background-color: indigo;
    margin-top: 30px;
}
label,
input {
  display: block;
  margin-top: 0.5rem;
  width: 100%;
}

label {
  font-weight: 500;
  font-size: 1.3rem;
}

input {
  border-radius: 5px;
  padding: 0.5rem;
  border: transparent;
  font-size: large;
  margin: 1rem 0;
}

#calculate-number {
  margin: 0.5rem auto;
  display: block;
}

#calculate-number {
  background-color: var(--background-dark);
  border: 2px solid var(--black);
  color: var(--black);
  padding: 0.4rem 1rem;
  border-radius: 0.5rem;
  font-size: large;
  cursor: pointer;
  outline: var(--black);
  margin: auto;
  display: block;
}

#output-container {
  display: block;
  margin: auto;
  margin-top: 1rem;
  width: 100%;
  text-align: center;
  padding: 0.5rem;
  font-size: x-large;
  border-color: var(--black);
  border-width: medium;
  border-radius: 5px;
}
#calculate-number{
    background-color: rgb(209, 209, 209);
    border-radius: 27px;
    border: 3px solid rgb(9, 136, 255);
}
#calculate-number:hover{
    color: rgb(248, 0, 0);
   
  

}