<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    
    <style>
        .box{
            height: 100px;
            width: 100px;
        }
        .pink{
            background-color: pink;
        }
        .red{
            background-color: red;
        }
        .blue{
            background-color: blue;
        }
        .grey{
            background-color: grey;
            display: grid;
        }
    </style>
</head>
<body>
    <div class="pink box" onclick="changeColor(this)"></div>
    <div class="red box" onclick="changeColor(this)"></div>
    <div class="blue box" onclick="changeColor(this)"></div>
    <div class="grey box" id="app">
        <button onclick="letterPressed(this)">A</button>
        <button onclick="letterPressed(this)">B</button>
        <button onclick="letterPressed(this)">C</button>
        <button onclick="letterPressed(this)">D</button>
        <button onclick="letterPressed(this)">E</button>
        <div class="grey box" id="text">Du trykket på <div id="letter">Noe</div></div>
    </div>
    <script>
        function changeColor(element){
            element.style.backgroundColor = "green";
            element.innerHTML = "hei";
        };
        function letterPressed(letter){
            let letterPress = letter.innerHTML;
            console.log(letterPress);
            document.getElementById('letter').innerHTML = `${letterPress}`;
        }
    </script>
</body>
</html>