JS Calc

/*Downloaded from https://www.codeseek.co/f1e2l3i4x5/js-calc-MEqMvo */
h1 {
  text-align: center;
}

body {
    background-color: lightblue;
}

.screen {
  padding: 30px;
  margin: 50px;
  margin-bottom: 15px;
  background: white;
  border-radius: 5px;
  border-style: solid;
  border-width: 2px;
  border-color: grey;
  color: black;
  font-size: 2em;
  line-height: 0;
}

.circle {
  width: 45px;
  height: 45px;
  background: black;
  border-radius: 22.5px;
  border-style: solid;
  border-width: 2px;
  border-color: grey;
  color: white;
}

.button {
  position: absolute;
}

.wrapper {
  text-align: center;
}

.zero {
  margin-top: 20%;
}

.twelve {
  position: relative;
  top: -135px;
  background: #515151 !important;
}
.six {
  position: relative;
  background: #515151 !important;
}
.three {
  position: relative;
  left: 100px;
  top: -137px;
}
.nine {
  position: relative;
  right: 100px;
  top: -183px;
}
.one {
  position: relative;
  right: -46px;
  top: -305px;
}
.two {
  position: relative;
  right: -83px;
  top: -317px;
  background: #515151 !important;
}
.eleven {
  position: relative;
  right: 46px;
  top: -395px;
}
.ten {
  position: relative;
  right: 83px;
  top: -408px;
  background: #515151 !important;
}
.four {
  position: relative;
  right: -83px;
  top: -368px;
  background: #515151 !important;
}
.five {
  position: relative;
  right: -46px;
  top: -380px;
}
.seven {
  position: relative;
  right: 46px;
  top: -425px;
}
.eight {
  position: relative;
  right: 83px;
  top: -503px;
  background: #515151 !important;
}
.equal {
  position: relative;
  right: 0px;
  top: -546.5px;
  background: #f47321 !important;
}
.plus {
  position: relative;
  right: -41.5px;
  top: -663px;
  background: #367c2b !important;
}
.minus {
  position: relative;
  right: 41.5px;
  top: -708px;
  background: #e41b23 !important;
}
.multiply {
  position: relative;
  right: -43px;
  top: -708px;
  background: #004c91 !important;
}
.divide {
  position: relative;
  right: 43px;
  top: -753px;
  background: #ffc220 !important;
}
.clear {
  position: relative;
  right: 0px;
  top: -864px;
  background: white !important;
  color: black !important;
}
.dot-1 {
  position: relative;
  right: -90px;
  top: -955px;
  background: white !important;
  color: black !important;
}
.dot-2 {
  position: relative;
  right: 89px;
  top: -1000px;
  background: white !important;
  color: black !important;
}
.dot-3 {
  position: relative;
  right: -90px;
  top: -870px;
  background: white !important;
  color: black !important;
}
.dot-4 {
  position: relative;
  right: 90px;
  top: -915px;
  background: white !important;
  color: black !important;
}

/*Downloaded from https://www.codeseek.co/f1e2l3i4x5/js-calc-MEqMvo */
$(document).ready(function() {

var num = [];
var storage = [];

//output to console
function con (arr) {
  console.log(arr);
}   
//to show accum result of the input
function show (rh) {
$("#screen").text(rh.join(""));
}  
//to input complex number
function inputNum (arr, mem) {
$("#one").on("click", function(){
  arr.push("1");
  show(arr);
});
$("#two").on("click", function(){
  arr.push("2");
  show(arr);
});
$("#three").on("click", function(){
  arr.push("3");
  show(arr);
});
$("#four").on("click", function(){
  arr.push("4");
  show(arr);
});
$("#five").on("click", function(){
  arr.push("5");
  show(arr);
});
$("#six").on("click", function(){
  arr.push("6");
  show(arr);
});
$("#seven").on("click", function(){
  arr.push("7");
  show(arr);
});
$("#eight").on("click", function(){
  arr.push("8");
  show(arr);
});
$("#nine").on("click", function(){
  arr.push("9");
  show(arr);
});
$("#ten").on("click", function(){
  arr.push("10");
  show(arr);
});
$("#eleven").on("click", function(){
  arr.push("11");
  show(arr);
});
$("#twelve").on("click", function(){
  arr.push("12");
  show(arr);
});
$("#zero").on("click", function(){
  arr.push("0");
  show(arr);
});
$("#plus").on("click", function(){
  mem.push(arr.join("").slice(0));
  mem.push("+");
  arr = [];
  show(arr);
});
$("#minus").on("click", function(){
  mem.push(arr.join("").slice(0));
  mem.push("-");
  arr = [];
  show(arr);
});
$("#multiply").on("click", function(){
  mem.push(arr.join("").slice(0));
  mem.push("*");
  arr = [];
  show(arr);
});
$("#divide").on("click", function(){
  mem.push(arr.join("").slice(0));
  mem.push("/");
  arr = [];
  show(arr);
});
$("#equal").on("click", function(){ 
  mem.push(arr.join("").slice(0));
  arr = [];
  show(arr);
  show2(mem);
});
$("#clear").on("click", function(){
  mem = [];
  arr = [];
  show(arr);
}); 
}

inputNum(num, storage);   

function show2(mem) {
con(mem);
var move = parseInt(mem[0]);
  
  for (var i=1;i<mem.length;i=i+2) {
    if (mem[i]=="+") {
      move = move + parseInt(mem[i+1]);
    }
    if (mem[i]=="-") {
      move = move - parseInt(mem[i+1]);
    }
    if (mem[i]=="*") {
      move = move * parseInt(mem[i+1]);
    }
    if (mem[i]=="/") {
      move = move / parseInt(mem[i+1]);
    }
  }
$("#screen").text(move);
con(move);  
  
}     
  
});