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Create a Quiz App with Timer using HTML CSS & JavaScript

codingnepal profile image CodingNepal ・7 min read

Hello readers, Today in this blog you'll learn how to Create a Quiz Application with Timer using HTML CSS & JavaScript. Earlier I've shared a blog on how to Create a Responsive Personal Portfolio Website and now it's time to create Quiz Web App using JavaScript.

In this program [Quiz App with Timer], there are three layers or boxes, and these boxes shown one by one on a particular button clicked. At first, on the webpage, there is shown a button labeled as "Start Quiz" and when you clicked on that button, then the info box appears with popup animation. In this infobox, there are some rules of the quiz and two buttons labeled as "Exit" and "Continue". When you clicked on the Exit button, the info box will be hidden but when you clicked on the Continue button, then the Quiz Box appears.

In the Quiz Box, there is a header with a title on the left side and a timer box on the right side. This timer starts decrement from 15 to 0 sec and there is also shown a timeline indicator that is sliding from the left to right side according to the timer. If the user selects an option between 15 to 0 sec, the timer will be stopped and all available options will be disabled. If the user selected option is correct, the selected option color, background color changed to green and there is also shown the tick icon to inform the user that the selected answer is correct. If the user selects an option that is incorrect, the selected option color, background-color changed to red and there is shown the cross icon to inform the user that the selected option is incorrect and the correct option will be automatically selected.

If the user doesn't select an option between 15 to 0 sec, the timer will be stopped once it comes in 0 and the correct option of that question will be selected automatically. After that, there is the next button to show the next question, and there is a total of five questions on this Quiz. In the end, the result box will be appeared and shown the user score and two buttons [Replay Quiz, Quit Quiz], if the user clicked on the replay quiz button, the quiz will again start with the number 1 question, and the score of the user will be 0 but if the user clicked on the quit quiz button, the current window will be reloaded and the quiz starts from the begin.

You can copy the codes from the given boxes or download the code files from the given link but I recommend you to download the source code files instead of copying codes. Click here to download code files.

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HTML CODE:
<!DOCTYPE html>
<!-- Created By CodingNepal - www.codingnepalweb.com -->
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- <title>Awesome Quiz App | CodingNepal</title> -->
    <link rel="stylesheet" href="style.css">
    <!-- FontAweome CDN Link for Icons -->
    <script src="https://kit.fontawesome.com/a076d05399.js"></script>
</head>
<body>
    <!-- start Quiz button -->
    <div class="start_btn"><button>Start Quiz</button></div>

    <!-- Info Box -->
    <div class="info_box">
        <div class="info-title"><span>Some Rules of this Quiz</span></div>
        <div class="info-list">
            <div class="info">1. You will have only <span>15 seconds</span> per each question.</div>
            <div class="info">2. Once you select your answer, it can't be undone.</div>
            <div class="info">3. You can't select any option once time goes off.</div>
            <div class="info">4. You can't exit from the Quiz while you're playing.</div>
            <div class="info">5. You'll get points on the basis of your correct answers.</div>
        </div>
        <div class="buttons">
            <button class="quit">Exit Quiz</button>
            <button class="restart">Continue</button>
        </div>
    </div>

    <!-- Quiz Box -->
    <div class="quiz_box">
        <header>
            <div class="title">Awesome Quiz Application</div>
            <div class="timer">
                <div class="time_left_txt">Time Left</div>
                <div class="timer_sec">15</div>
            </div>
            <div class="time_line"></div>
        </header>
        <section>
            <div class="que_text">
                <!-- Here I've inserted question from JavaScript -->
            </div>
            <div class="option_list">
                <!-- Here I've inserted options from JavaScript -->
            </div>
        </section>

        <!-- footer of Quiz Box -->
        <footer>
            <div class="total_que">
                <!-- Here I've inserted Question Count Number from JavaScript -->
            </div>
            <button class="next_btn">Next Que</button>
        </footer>
    </div>

    <!-- Result Box -->
    <div class="result_box">
        <div class="icon">
            <i class="fas fa-crown"></i>
        </div>
        <div class="complete_text">You've completed the Quiz!</div>
        <div class="score_text">
            <!-- Here I've inserted Score Result from JavaScript -->
        </div>
        <div class="buttons">
            <button class="restart">Replay Quiz</button>
            <button class="quit">Quit Quiz</button>
        </div>
    </div>

    <!-- Inside this JavaScript file I've inserted Questions and Options only -->
    <!-- <script src="js/questions.js"></script> -->

    <!-- Inside this JavaScript file I've coded all Quiz Codes -->
    <!-- <script src="js/script.js"></script> -->

</body>
</html>
</html>
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CSS CODE:
/* importing google fonts */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@200;300;400;500;600;700&display=swap');
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body{
    background: #007bff;
}

::selection{
    color: #fff;
    background: #007bff;
}

.start_btn,
.info_box,
.quiz_box,
.result_box{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 
                0 6px 20px 0 rgba(0, 0, 0, 0.19);
}

.info_box.activeInfo,
.quiz_box.activeQuiz,
.result_box.activeResult{
    opacity: 1;
    z-index: 5;
    pointer-events: auto;
    transform: translate(-50%, -50%) scale(1);
}

.start_btn button{
    font-size: 25px;
    font-weight: 500;
    color: #007bff;
    padding: 15px 30px;
    outline: none;
    border: none;
    border-radius: 5px;
    background: #fff;
    cursor: pointer;
}

.info_box{
    width: 540px;
    background: #fff;
    border-radius: 5px;
    transform: translate(-50%, -50%) scale(0.9);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
}

.info_box .info-title{
    height: 60px;
    width: 100%;
    border-bottom: 1px solid lightgrey;
    display: flex;
    align-items: center;
    padding: 0 30px;
    border-radius: 5px 5px 0 0;
    font-size: 20px;
    font-weight: 600;
}

.info_box .info-list{
    padding: 15px 30px;
}

.info_box .info-list .info{
    margin: 5px 0;
    font-size: 17px;
}

.info_box .info-list .info span{
    font-weight: 600;
    color: #007bff;
}
.info_box .buttons{
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: 0 30px;
    border-top: 1px solid lightgrey;
}

.info_box .buttons button{
    margin: 0 5px;
    height: 40px;
    width: 100px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    outline: none;
    border-radius: 5px;
    border: 1px solid #007bff;
    transition: all 0.3s ease;
}

.quiz_box{
    width: 550px;
    background: #fff;
    border-radius: 5px;
    transform: translate(-50%, -50%) scale(0.9);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
}

.quiz_box header{
    position: relative;
    z-index: 2;
    height: 70px;
    padding: 0 30px;
    background: #fff;
    border-radius: 5px 5px 0 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0px 3px 5px 1px rgba(0,0,0,0.1);
}

.quiz_box header .title{
    font-size: 20px;
    font-weight: 600;
}

.quiz_box header .timer{
    color: #004085;
    background: #cce5ff;
    border: 1px solid #b8daff;
    height: 45px;
    padding: 0 8px;
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 145px;
}

.quiz_box header .timer .time_left_txt{
    font-weight: 400;
    font-size: 17px;
    user-select: none;
}

.quiz_box header .timer .timer_sec{
    font-size: 18px;
    font-weight: 500;
    height: 30px;
    width: 45px;
    color: #fff;
    border-radius: 5px;
    line-height: 30px;
    text-align: center;
    background: #343a40;
    border: 1px solid #343a40;
    user-select: none;
}

.quiz_box header .time_line{
    position: absolute;
    bottom: 0px;
    left: 0px;
    height: 3px;
    background: #007bff;
}

section{
    padding: 25px 30px 20px 30px;
    background: #fff;
}

section .que_text{
    font-size: 25px;
    font-weight: 600;
}

section .option_list{
    padding: 20px 0px;
    display: block;   
}

section .option_list .option{
    background: aliceblue;
    border: 1px solid #84c5fe;
    border-radius: 5px;
    padding: 8px 15px;
    font-size: 17px;
    margin-bottom: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

section .option_list .option:last-child{
    margin-bottom: 0px;
}

section .option_list .option:hover{
    color: #004085;
    background: #cce5ff;
    border: 1px solid #b8daff;
}

section .option_list .option.correct{
    color: #155724;
    background: #d4edda;
    border: 1px solid #c3e6cb;
}

section .option_list .option.incorrect{
    color: #721c24;
    background: #f8d7da;
    border: 1px solid #f5c6cb;
}

section .option_list .option.disabled{
    pointer-events: none;
}

section .option_list .option .icon{
    height: 26px;
    width: 26px;
    border: 2px solid transparent;
    border-radius: 50%;
    text-align: center;
    font-size: 13px;
    pointer-events: none;
    transition: all 0.3s ease;
    line-height: 24px;
}
.option_list .option .icon.tick{
    color: #23903c;
    border-color: #23903c;
    background: #d4edda;
}

.option_list .option .icon.cross{
    color: #a42834;
    background: #f8d7da;
    border-color: #a42834;
}

footer{
    height: 60px;
    padding: 0 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid lightgrey;
}

footer .total_que span{
    display: flex;
    user-select: none;
}

footer .total_que span p{
    font-weight: 500;
    padding: 0 5px;
}

footer .total_que span p:first-child{
    padding-left: 0px;
}

footer button{
    height: 40px;
    padding: 0 13px;
    font-size: 18px;
    font-weight: 400;
    cursor: pointer;
    border: none;
    outline: none;
    color: #fff;
    border-radius: 5px;
    background: #007bff;
    border: 1px solid #007bff;
    line-height: 10px;
    opacity: 0;
    pointer-events: none;
    transform: scale(0.95);
    transition: all 0.3s ease;
}

footer button:hover{
    background: #0263ca;
}

footer button.show{
    opacity: 1;
    pointer-events: auto;
    transform: scale(1);
}

.result_box{
    background: #fff;
    border-radius: 5px;
    display: flex;
    padding: 25px 30px;
    width: 450px;
    align-items: center;
    flex-direction: column;
    justify-content: center;
    transform: translate(-50%, -50%) scale(0.9);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
}

.result_box .icon{
    font-size: 100px;
    color: #007bff;
    margin-bottom: 10px;
}

.result_box .complete_text{
    font-size: 20px;
    font-weight: 500;
}

.result_box .score_text span{
    display: flex;
    margin: 10px 0;
    font-size: 18px;
    font-weight: 500;
}

.result_box .score_text span p{
    padding: 0 4px;
    font-weight: 600;
}

.result_box .buttons{
    display: flex;
    margin: 20px 0;
}

.result_box .buttons button{
    margin: 0 10px;
    height: 45px;
    padding: 0 20px;
    font-size: 18px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    outline: none;
    border-radius: 5px;
    border: 1px solid #007bff;
    transition: all 0.3s ease;
}

.buttons button.restart{
    color: #fff;
    background: #007bff;
}

.buttons button.restart:hover{
    background: #0263ca;
}

.buttons button.quit{
    color: #007bff;
    background: #fff;
}

.buttons button.quit:hover{
    color: #fff;
    background: #007bff;
}
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For JavaScript codes, please go to this link - https://www.codingnepalweb.com/2020/10/create-quiz-app-with-timer-using-javascript.html

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