html {
      font-size: 62.5%;
      box-sizing: border-box;
    }

    *,
    *::before,
    *::after {
      margin: 0;
      padding: 0;
      box-sizing: inherit;
    }
.back{
	 background-image: url('../img/calci2.jpg');
	 background-repeat: no-repeat;
	}
    .calculator {
		margin-top: 150px;
		/* margin-bottom: 150px; */
		  padding-bottom: 20px;
		

      border: 1px solid #ccc;
      border-radius: 5px;
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 600px;
	
    }

    .calculator-screen {
      width: 100%;
      height: 80px;
      border: none;
      background-color: #252525;
      color: #fff;
      text-align: right;
      padding-right: 20px;
      padding-left: 10px;
      font-size: 4rem;
    }
	.btn-warning
	{
		background:orange;
		font-size :1.5rem;
		height:50px;
	}
	
	@media only screen and (max-width: 700px)
	{
		.calculator
		{
			padding: 10px;
			width: 100%;
		}
	}
	
	@media only screen and (max-width: 700px)
	{
		.btn-success
		{
	
			width: 100%;
		}
	}
	
	
	
	@media only screen and (max-width: 500px)
	{
		.calculator
		{
			padding: 10px;
			width: 100%;
		}
	}
	
	@media only screen and (max-width: 500px)
	{
		.btn-success
		{
	
			width: 100%;
		}
	}
	
	
		@media only screen and (max-width: 500px)
	{
		 button {
      width: 100%;
    }
	}

    button {
      height: 60px;
      font-size: 2rem!important;
    }
	
	

    .equal-sign {
      height: 98%;
      grid-area: 2 / 4 / 6 / 5;
    }

    .calculator-keys {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      grid-gap: 20px;
      padding: 20px;
    }
.btnnew {
	width: 600px;
	background: #38C21D;
	color: white;
	font-weight: 700;
}

.input-text {
	width: 100px;
	font-size: 25px;
	font-style: strong;
	color: #0B597C;
}
.empty1 {
	width:500px;
}

.count {
	height: 50px;
	width: 100px;
}