'Page looks different on localhost than in Intellij preview

In my Spring app I have implemented form on my page and I don't know why it looks different when I run it on localhost from when i clicked in the Intellij chrome preview. The input fields should be one below the other rather than next to each other.

Here is the html and css file:

<!doctype html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <title>FoodiesHub</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" th:href="@{/css/mystyle.css}" href="../static/css/mystyle.css" />
    <link rel="preconnect" href="https://fonts.gstatic.com">
    <link href="https://fonts.googleapis.com/css2?family=Nova+Square&family=Ubuntu&display=swap" rel="stylesheet">
    <link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css"
          rel="stylesheet"
          integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC"
          crossorigin="anonymous">
</head>

<body>

<header>
    <nav class="navbar navbar-dark navbar-expand-md">

        <a class="navbar-brand" href="/" id="logo-lettering"><img id="logo" th:src="@{/images/fh_logo_white.png}" src="../static/images/fh_logo_white.png"
                                                                  width="30" height="30" class="d-inline-block mr-1 align-bottom" alt="logo">FoodiesHub</a>

        <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#main-menu"
                aria-controls="main-menu" aria-expanded="false" aria-label="Przełącznik nawigacji">

            <span class="navbar-toggler-icon"></span>
        </button>

        <div class="collapse navbar-collapse justify-content-end" id="main-menu">

            <ul class="navbar-nav">
                <li class="navbar-item">
                    <a class="nav-link" href="/"> Start </a>
                </li>

                <li class="navbar-item">
                    <a class="nav-link" href="/users"> Użytkownicy </a>
                </li>

                <li class="nav-item dropdown">
                    <a class="nav-link dropdown-toggle" href="#" data-toggle="dropdown" role="button" aria-expanded="false"> Przedmioty </a>

                    <div class="dropdown-menu">

                        <a class="dropdown-item" href="/items"> Wyświetl przedmioty </a>
                        <div class="dropdown-divider"></div>
                        <a class="dropdown-item" href="/create-item"> Stwórz Przedmiot </a>
                        <a class="dropdown-item" href="/my-items"> Wyświetl moje przedmioty </a>

                    </div>

                </li>

                <li class="navbar-item">
                    <a class="nav-link" href="/login.html"> Zaloguj się </a>
                </li>

                <li class="navbar-item">
                    <a class="nav-link" href="/create-user"> Zarejestruj się </a>
                </li>

            </ul>
        </div>
    </nav>
</header>

<div id="center-form">
    <h1>
        Zarejestruj się
    </h1>
    <form action="#" th:action="@{/create-user}" th:object="${dto}" method="post">
        <fieldset>
            <legend for="login-field">Login: </legend>
            <input type="text" id="login-field" th:field="*{login}">

            <div style="color: red" th:if="${#fields.hasErrors('login')}">
                Incorrect login (must be at least 3 characters long!
            </div>


            <legend for="name-field">Imię: </legend>
            <input type="text" id="name-field" th:field="*{name}">
            <div style="color: red" th:if="${#fields.hasErrors('name')}" th:errors="*{name}"></div>



            <legend for="surname-field">Nazwisko: </legend>
            <input type="text" id="surname-field" th:field="*{surname}">
            <div style="color: red" th:if="${#fields.hasErrors('surname')}" th:errors="*{surname}"></div>



            <legend for="mail-field">Adres E-mail:</legend>
            <input type="text" id="mail-field" th:field="*{mail}">
            <div style="color: red" th:if="${#fields.hasErrors('mail')}" th:errors="*{mail}"></div>


            <legend for="password-field">Hasło: </legend>
            <input type="password" id="password-field" th:field="*{password}">
            <div style="color: red" th:if="${#fields.hasErrors('password')}" th:errors="*{password}"></div>


            <legend for="address-field">Adres: </legend>
            <input type="text" id="address-field" th:field="*{address}">
            <div style="color: red" th:if="${#fields.hasErrors('address')}" th:errors="*{address}"></div>


            <legend for="city-field">Miasto: </legend>
            <input type="text" id="city-field" th:field="*{city}">
            <div style="color: red" th:if="${#fields.hasErrors('city')}" th:errors="*{city}"></div>


            <legend for="zip-field">Kod pocztowy: </legend>
            <input type="text" id="zip-field" th:field="*{zip}">
            <div style="color: red" th:if="${#fields.hasErrors('zip')}" th:errors="*{zip}"></div>

        </fieldset>

        <input class="btn btn-dark" type="submit" value="Zarejestruj się">
    </form>
</div>



<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
</body>
</html>
html {
    height: 100%;

}

body
{
    background-image: url("../images/cool-background.jpg");
    min-width: 400px;
    min-height: 400px;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    font-family: 'Ubuntu', sans-serif;
    padding-bottom:60px;    /* Height of the footer */
    background-attachment: fixed;
}

#logo
{
    display: inline-block;
    margin-left: 2px;
    margin-right: 2px;
}

#logo-lettering
{
    font-family: 'Nova Square', cursive;
}


#welcome-section
{
    display: flex;
    flex-flow: column;
    color: black;
    margin-left: 100px;
    margin-right: 100px;
    min-height: 100%;
    padding-bottom:100px;
}

.img-container
{
    align-content: center;
    text-align: center;
    display: block;
}

.welcome-header
{
    text-align: center;
    background-color: blanchedalmond;
}

#hi-1
{
    font-size: 75px;
}

#hi-2
{
    font-size: 35px;
}


#footer
{
    position:fixed;
    bottom:0;
    width:100%;
    height:60px;   /* Height of the footer */
    text-align: center;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: black;
}


.navbar
{
    background-color: black;
}

#center-form
{
    padding-top: 50px;
    text-align: center;
}

#back-button
{
    background-color: black;
    color: white;
    text-decoration: none;
}

#form-list
{
    padding-top: 20px;
    text-align: center;
    color: white;

}

.table-center
{
    margin-left: auto;
    margin-right: auto;
    border-collapse: collapse;
    background-color: black;
    border-radius: 5px;
}

td
{
    border: 3px solid white;
    margin: 4px;
    border-radius: 5px;
}

tr
{
    border-radius: 5px;
}

#custom-button
{
  color: black;
}

enter image description here

enter image description here

Any clue what can cause the problem?



Solution 1:[1]

The problem occured because the versions of Bootsrap I had in head was different to the version I was importing in the bottom page script.

After I changed this link :

    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.css">

to:

    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css" integrity="sha384-/Y6pD6FV/Vv2HJnA6t+vslU6fwYXjCFtcEpHbNJ0lyAFsXTsjBbfaDjzALeQsN6M" crossorigin="anonymous">

it started working as It should.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Buena