在php文件中用css插入通用边距的特定格式

I have the following code and displayed output on a webpage shown below...

...and wish to create a slight indent in the margin so that the left align is not so severely on the left? The result is generated from two text files, so it is the main code that generates the css

It appears to be this line that generates the left as opposed to centre command;

<div class="col-lg-10 text-left">

The whole code snippet in question is here:

<!-- Main
    ============================================= -->
    <section id="code">
        <div class="container-fluid" style="text-align:left;">

            <p></br></br></br></br></p>

            <div class="row">
            <div class="col-lg-2 text-left">
                <p></br></br></br></br></p>

                <?php include 'quiz-sidebar.php'; ?>
            </div>
            <div class="col-lg-10 text-left">

            <h2 class="section-heading" style="color:black;">Test Your Knowledge : <?php include "content/quiz/". $_GET['quiz'] ."/title.txt"; ?></h2>
            <p></br></p>

            <div style="border-style: solid; border-radius: 5px; border-width: 5px;">
            <?php include "content/quiz/". $_GET['quiz'] ."/questiontrinket.php"; ?>
            </div>

What do I need to add to the existing code to get the margins to be rendered correctly (i.e with an indent for both the intro text (questiontrinket.php) and the questions held in question.txt?

Edit: deleted previous answer since he needs a copy paste solution.

Here goes:

<!-- Main
    ============================================= -->
    <section id="code">
        <div class="container-fluid" style="text-align:left;">

            <p></br></br></br></br></p>

            <div class="row">
            <div class="col-lg-2 text-left">
                <p></br></br></br></br></p>

                <?php include 'quiz-sidebar.php'; ?>
            </div>
            <div class="col-lg-10 text-left">

            <h2 class="section-heading" style="color:black;">Test Your Knowledge : <?php include "content/quiz/". $_GET['quiz'] ."/title.txt"; ?></h2>
            <p></br></p>

            <div style="border-style: solid; border-radius: 5px; border-width: 5px;">
                <div class="questions" style="display:block; padding-left: 10px;">
                    <style>
                        .questions input[type="radio"]{
                            margin-left: 5px;
                        }
                    </style>
                    <?php include "content/quiz/". $_GET['quiz'] ."/questiontrinket.php"; ?>
                </div>
            </div>