---
# System prepended metadata

title: Kalkulačka simple

---

# Kalkulačka simple




```html
<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <link rel="stylesheet" href="styles.css">
    </head>
  <body>
    <h1>Moje aplikace</h1>

    
    <table class="calculator" >
      <tr>
        <td colspan="3"> <input class="display-box" type="text" id="result" disabled /> </td>
    
        <!-- clearScreen() function clears all the values -->
        <td> <input type="button" value="C" onclick="clearScreen()" class="btn" /> </td>
      </tr>
      <tr>
        <!-- display() function displays the value of clicked button -->
        <td> <input type="button" value="1" /> </td>
        <td> <input type="button" value="2" /> </td>
        <td> <input type="button" value="3" /> </td>
        <td> <input type="button" value="/" /> </td>
      </tr>
      <tr>
        <td> <input type="button" value="4" /> </td>
        <td> <input type="button" value="5" /> </td>
        <td> <input type="button" value="6" /> </td>
        <td> <input type="button" value="-" /> </td>
      </tr>
      <tr>
        <td> <input type="button" value="7" /> </td>
        <td> <input type="button" value="8" /> </td>
        <td> <input type="button" value="9" /> </td>
        <td> <input type="button" value="+" /> </td>
      </tr>
      <tr>
        <td> <input type="button" value="." /> </td>
        <td> <input type="button" value="0" /> </td>
    
        <!-- calculate() function evaluates the mathematical expression -->
        <td> <input type="button" value="=" onclick="calculate()" class="btn" /> </td>
        <td> <input type="button" value="*" /> </td>
      </tr>
    </table>

    <script  type="text/javascript" src="script.js"></script>
  </body>
</html>


```

```css
@import url('https://fonts.googleapis.com/css2?family=Orbitron&display=swap');

.calculator {
    padding: 10px;
    border-radius: 1em;
    height: 380px;
    width: 400px;
    margin: auto;
    background-color: #191b28;
    box-shadow: rgba(0, 0, 0, 0.19) 0px 10px 20px, rgba(0, 0, 0, 0.23) 0px 6px 6px;
}
.display-box {
    font-family: 'Orbitron', sans-serif;
    background-color: #dcdbe1;
    border: solid black 0.5px;
    color: black;
    border-radius: 5px;
    width: 100%;
    height: 65%;
}
.btn {
    background-color: #fb0066!important;
}
input[type=button] {
    font-family: 'Orbitron', sans-serif;
    background-color: #64278f;
    color: white;
    border: solid black 0.5px;
    width: 100%;
    border-radius: 5px;
    height: 70%;
    outline: none;
}
input:active[type=button] {
    background: #e5e5e5;
    -webkit-box-shadow: inset 0px 0px 5px #c1c1c1;
    -moz-box-shadow: inset 0px 0px 5px #c1c1c1;
    box-shadow: inset 0px 0px 5px #c1c1c1;
}

```