Help me in solving HTML45 problem

help
,
1

My issue

after solveing the problem
it shows me an error message has
did you update

on thw line of 7 as requied
please shorted of the problem
thankyou

My code

// your code goes here

Learning course: Learn HTML / CSS
Problem Link: CSS Inline styling Practice Problem in HTML / CSS - CodeChef

2 
<body>
    <header>
        <h1>My recent trip to Greece</h1>
    </header>

    <!-- One possible solution as follows -->
    <main>
        <h2 style='color: blue; font-size: 16px;'>Overview</h2>
        <h3>
            <ol style='color: red; font-size: 25px;'>
                <li>Greece</li>
                <li>Trip Options</li>
                <li>Trip Itinerary</li>
            </ol>
        </h3>
    </main>

</body>