bootstrap carousel (auto-slide doesn't work)

Question

Hope you have a nice day, I have a problem every time I run that. it appear only the first slide for few seconds then it disappears completely and when I use the side arrows or the buttons before the slide disappears it works normally.

HTML

<header>
        <div class="row row-content">
            <div class="col">
                <div id="mycarousel" class="carousel slide" data-ride="carousel">
                    <div class="carousel-inner" role="listbox">
                        
                        <div class="carousel-item active">
                            <img src="img/img1.png" class="d-block img-fluid">
                            <div class="carousel-caption d-none d-md-block" alt="img1">
                                <h2>text</h2>
                                <p class="d-none d-sm-block">text</p>
                            </div>
                        </div>

                        <div class="carousel-item">
                            <img src="img/img2.png" class="d-block img-fluid">
                            <div class="carousel-caption d-none d-md-block" alt="img2">
                                <h2>text</h2>
                                <p class="d-none d-sm-block">text</p>
                            </div>
                        </div>

                        <div class="carousel-item">
                            <img src="img/img3.png" class="d-block img-fluid">
                            <div class="carousel-caption d-none d-md-block" alt="img3">
                                <h2>text</h2>
                                <p class="d-none d-sm-block">text</p>
                            </div>
                        </div>
                       
                        
                    </div>
                    <ol class="carousel-indicators">
                        <li data-target="#mycarousel"data-slide-to="0" class="active"></li>
                        <li data-target="#mycarousel"data-slide-to="1" class="active"></li>
                        <li data-target="#mycarousel"data-slide-to="2" class="active"></li>
                    </ol>
                    <a  class="carousel-control-prev" href="#mycarousel" role="button" data-slide="prev">
                        <span class="carousel-control-prev-icon"></span>
                    </a>
                    <a  class="carousel-control-next" href="#mycarousel" role="button" data-slide="next">
                        <span class="carousel-control-next-icon"></span>
                    </a>
                </div>
            </div>
        </div>
    </header>

CSS

.carousel-item {
  height: 420px;
}
.carousel-item img {
  position: absolute;
  top: 0;
  left: 0;
  min-height: 420px;
}

Answer 1

I have made this example and is working perfectly. Have you inserted js library? Because your code is all right.

 .carousel-item { height: 420px; }.carousel-item img { position: absolute; top: 0; left: 0; min-height: 420px; }

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <link href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" rel="stylesheet"/> <header> <div class="row row-content"> <div class="col"> <div id="mycarousel" class="carousel slide" data-ride="carousel"> <div class="carousel-inner" role="listbox"> <div class="carousel-item active"> <img src="https://www.lupadigital.info/wp-content/uploads/2018/05/imagens-gratis.jpg" class="d-block img-fluid"> <div class="carousel-caption d-none d-md-block" alt="img1"> <h2>text</h2> <p class="d-none d-sm-block">text</p> </div> </div> <div class="carousel-item"> <img src="https://www.lupadigital.info/wp-content/uploads/2018/05/imagens-gratis.jpg" class="d-block img-fluid"> <div class="carousel-caption d-none d-md-block" alt="img2"> <h2>text</h2> <p class="d-none d-sm-block">text</p> </div> </div> <div class="carousel-item"> <img src="https://www.lupadigital.info/wp-content/uploads/2018/05/imagens-gratis.jpg" class="d-block img-fluid"> <div class="carousel-caption d-none d-md-block" alt="img3"> <h2>text</h2> <p class="d-none d-sm-block">text</p> </div> </div> </div> <ol class="carousel-indicators"> <li data-target="#mycarousel"data-slide-to="0" class="active"></li> <li data-target="#mycarousel"data-slide-to="1" class=""></li> <li data-target="#mycarousel"data-slide-to="2" class=""></li> </ol> <a class="carousel-control-prev" href="#mycarousel" role="button" data-slide="prev"> <span class="carousel-control-prev-icon"></span> </a> <a class="carousel-control-next" href="#mycarousel" role="button" data-slide="next"> <span class="carousel-control-next-icon"></span> </a> </div> </div> </div> </header> <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js"></script>