<header>
    <h1>Working with the DOM - substring comparisons</h1>
</header>
<main>
    <h2>Text to be tested</h2>
    <p id="start">
        Lorem ipsum dolor sit amet consectetur, adipisicing elit. Quis, officiis!
    </p>
    <h3>Results of substring test</h3>
    <p id="result">&nbsp;</p>
</main>

html,
body {
    width: 75%;
    font-family: "Cochin", serif;
    margin: 1rem auto;
    color: darkgreen;
}
header {
    background-color: lightgrey;
    text-align: center;
    padding: 4px;
    border-radius: 10px;
    text-decoration: underline;
    text-underline-offset: 10px;
    box-shadow: 2px 0 12px grey;
    border: 1px inset lightgrey;
}
main {
    margin: 12px auto;
    background-color: lightgrey;
    padding: 4px;
    border-radius: 20px;
    box-shadow: 0 2px 12px grey;
    border: 1px inset lightgrey;
}
h2 {
    text-align: center;
}
p {
    font-size: 16px;
    padding: 0 10px;
}

#start {
    text-align: center;
}

#result {
    font-size: 20px;
    padding: 10px 40px;
    margin: 10px 40px;
    border: 1px dotted green;
}
#debugr {
    font-size: 20px;
    font-style: bold;
    margin: 40px;
    padding: 10px;
    border: 1px dotted green;
}
hr {
    margin-top: 2rem;
    border: none;
    border-top: 1px dotted green;
}
h3 {
    text-align: center;
}
@media screen and (max-width: 480px) {
    body {
        width: 100%;
    }
}

let startText = document.getElementById("start");
let resultText = document.getElementById("result");
let debugrText = document.getElementById("debugr");
let substringText = startText.textContent.substring(0, 5);

if (startText.textContent.includes("Lorem")) {
    resultText.innerText = "Well this is awkward ...";
} else {
    resultText.innerText = "All seems to be well ...";
}