* {
padding: 0;
margin: 0px;
outline: 0px;
}
ul, li{
  list-style-type: none;
}
/* body {
background-color:blue;
} */
.since-calculator{
border: 1px solid lightgrey;
border: none;
box-shadow: 4px -4px 9px #e5e5e5;
border-bottom: 6px solid lightgrey;
border-left: 5px solid lightgrey;
border-radius: 10px;
padding: 10px 0;
/* width: 400px; */
text-align: center;
}
.sincetific-alculator {

    background-color: #fff;
    /* width: 366px; */
    border: 1px solid #f1f1f1;
    padding: 10px 20px;
    box-shadow: 0 0 black;
  }
#display {
      box-shadow: 1px -1px 8px lightgrey inset;
    border-top: 3px solid lightgrey;
    border-right: 3px solid lightgrey;
    border-radius: 3px;
    width: 100%;
    height: 100px;
    text-align: right;
    /* background-color: black; */
    border: 3px solid white;
    font-size: 50px;
    left: 2px;
    top: 2px;
    color: green;
}
.btnTop {
    color: white;
    background-color: red;
    font-size: 40px;
    margin: auto;
    width: 19.2%;
    height: 70px;
}
.btnNum {
color: white;
background-color: #3498DB;
border-bottom: 5px solid #2980B9;
text-shadow: 0px -2px #2980B9;
font-size: 40px;
margin: auto;
width: 19.2%;
height: 70px;
}
.btnMath {
    color: white;
    background-color: #82BF56;
    border-bottom: 5px solid #669644;
    text-shadow: 0px -2px #669644;
    font-size: 40px;
    margin: auto;
    width: 19.2%;
    height: 70px;
}
.btnOpps {
    color: white;
    background-color: #ff9933;
    border-bottom: 5px solid #669644;
    text-shadow: 0px -2px #669644;
    font-size: 40px;
    margin: auto;
    width: 19.2%;
    height: 70px;
}
.sincetific-alculator{

}
.sincetific-alculator ul li{
  list-style: none;

}
.form-border{
  padding: 20px;
    border: 4px solid #e7e7e7;
    box-shadow: 3px 3px 3px 2px #e7e7e7;
}