1. need to get rid of the gaps between the input buttons 2. stop the page from constantly refreshing and clearing numbers

HTML Code:

<!DOCTYPE html>

<html lang="en">


    <meta charset="UTF-8" />



    <Link rel="stylesheet" type=text/css href="styles.css"></link>

        <script src="script.js" ></script>



      <div class="titel">Basic Calculator </div>

    <table border="0">


      <td colspan="3"><input type="text" id="result"></td>

        <td><input type="button" value="c" class="clear" onclick="clr()"></td>



          <td><input type="button" value="1" class="one" onclick="display('1')"></td>

          <td><input type="button" value="2" onclick="display('2')"></td>

          <td> <input type="button" value="3" onclick="display('3')"></td>

          <td> <input type="button" value="/" onclick="display('/')"></td>



          <td><input type="button" value="4" onclick="display('4')"></td>

        <td> <input type="button" value="5" onclick="display('5')"></td>

        <td> <input type="button" value="6" onclick="display('6')"></td>

        <td> <input type="button" value="-" onclick="display('-')"></td>



          <td><input type="button" value="7" onclick="display('7')"></td>

          <td> <input type="button" value="8" onclick="display('8')"></td>

            <td> <input type="button" value="9" onclick="display('9')"></td>

            <td> <input type="button" value="+" onclick="display('+')"></td>



                <td> <input type="button" value="." onclick="display('.')"></td>

                <td> <input type="button" value="0" onclick="display('0')"></td>

                <td> <input type="button" value="=" onclick="equate()"></td>

                <td> <input type="button" value="*" onclick="display('*')"></td>




        function clr(){document.getElementById("result").value=" ";}

        function display(val){document.getElementById("result").value+=val;}

        function equate(){

            let x=document.getElementById("result").value;

            let y = eval(x);






Now my CSS

div {

  border: 3px solid black;

  margin-right: 1200px;

  margin-top: 40px;

  text-align: center;

  background-color: blueviolet;

  color: white;

  font-family: Georgia, "Times New Roman", Times, serif;

  font-style: italic;

  font-weight: bold;


input {

  padding: 30px;

  background-color: green;

  border-collapse: collapse;

  color: white;

  font-size: 20px;


#result {

  background-color: white;


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1 Like

couple of thoughts

  1. you’d be better off using grid for the layout of this rather than a table
  2. you can do a search for html table calculator and get a few hits that will help with the design. If there’s something you don’t understand you can come back here and ask
  3. having the input color be white on a background color of white makes it kind of hard to see any numbers. when I do change the color I don’t see anything refreshing…unless I manually refresh the page myself.
1 Like

thanks Roma.1. good point. i am a complete novice and this is my very first attempt.
2. It looks then it is not the code which causes the page to get refreshed every second it must be something else. i press the number buttons on the calculator and it appears in the input box but then when the page gets refreshed it clears the input box of the numbers entered as well.

thanks Jeremy i will bear that in mind

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