*{
    margin: 0;
    padding: 0;
    background-color: #222831;
}

.body {
    height: 200px;
    position: relative;
    background-color: red;
    
  }
  
  .main-calculator {
    margin: 0;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 0 0 20px 20px;
       

  }

  .grid-container{

    display: grid;
    grid-template-columns: auto auto auto auto;
    /* padding-top: ; */
    padding: 10px;
    border-style: solid;
    border-color: #ffff;
    border-radius: 0 0 20px 20px;
    width: 350px;
    margin-top: -3px;
    
   
    
    
  }

  .input {

    background-color: #ffff;
    text-align: right;
    border-radius: 20px 20px 0 0;
    font-size: 50px;
    height: 150px;
    padding-bottom: 30px;
    width: 352px;
    position: relative;
    left: -1px;
    
  }



 .btn-circle{

    width: 70px;
    height: 70px;
    padding: 10px 16px;
    margin: 2px;
    border-radius: 35px;
    border: black;
    font-size: 24px;
    line-height: 1.33;
    background-color: #222831;
    color: #ffff;
    
 }

 .btn-circle-equal{

    width: 140px;
    position: absolute;
    left: 50%;
    top: 84%;
    height: 70px;
    padding: 10px 16px;
    margin: 2px;
    border-radius: 35px;
    border: black;
    font-size: 24px;
    line-height: 1.33;
    background-color: #ffa62b;
    color: #ffff;
    
 }

 .btn-circle:hover{

    background-color: #393e46;
 }

 .btn-circle:focus{

  outline: none;
  box-shadow: none;
 }

 .btn-circle-equal:focus{

  outline: none;
  box-shadow: none;
 }