Why does an image have borders when rounding corners?

M

Meeeeeeeeeeepo2020-04-25 07:01:18

css

Meeeeeeeeeeepo, 2020-04-25 07:01:18

Rounded the corners of the image by 20px, for some reason a contour appeared. Tried with border: 0; removing didn't help. Does anyone know what could be the problem?

<!doctype html>
<html lang="ru">
  <head>
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

    <!-- Bootstrap CSS -->
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
    <!-- fonts -->

    <link href="https://fonts.googleapis.com/css2?family=Barlow:[email protected]&display=swap" rel="stylesheet">

    <!-- style.css -->
    <link rel="stylesheet" href="css/style.css">
    <title>Tea</title>
  </head>
  <body>

    <!-- header -->

    <header>
      <div class="container-fluid shadow p-2 mb-4 bg-white rounded">
        <nav class="navbar navbar-expand-lg navbar-light">
          <a class="navbar-brand" href="#">Logo</a>
          <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
            <span class="navbar-toggler-icon"></span>
          </button>

          <div class="collapse navbar-collapse" id="navbarSupportedContent">
            <ul class="navbar-nav mr-auto">
              <li class="nav-item dropdown active">
                <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                  Каталог товаров
                </a>
                <div class="dropdown-menu" aria-labelledby="navbarDropdown">
                  <a class="dropdown-item" href="#">Зеленый чай</a>
                  <a class="dropdown-item" href="#">Черный чай</a>
                  <div class="dropdown-divider"></div>
                  <a class="dropdown-item" href="#">Кедропласт</a>
                </div>
              </li>
              <li class="nav-item">
                <a class="nav-link" href="#">Доставка</a>
              </li>
              <li class="nav-item">
                <a class="nav-link" href="#">Оплата</a>
              </li>
              <li class="nav-item">
                <a class="nav-link" href="#">О нас</a>
              </li>
              <li class="nav-item">
                <a class="nav-link" href="#">Контакты</a>
              </li>
            </ul>
            <form class="form-inline my-2 my-lg-0">
              <input class="form-control mr-sm-2" type="search" placeholder="Поиск по названию" aria-label="Search">
              <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Найти</button>
            </form>
          </div>
        </nav>
  		</div>
    </header>

    <!-- slider -->

    <div class="container slider">
      <div id="slider" class="carousel slide carousel-fade" data-ride="carousel">
        <ol class="carousel-indicators">
  				<li data-target="#slider" data-slide-to="0" class="active"></li>
  				<li data-target="#slider" data-slide-to="1"></li>
  			</ol>
        <div class="carousel-inner">
          <div class="carousel-item active ">
            <img class=" card-item" src="img/header-tea-1.jpg" class="d-block w-100" alt="tea1">
          </div>

          <div class="carousel-item">
            <img class=" card-item" src="img/header-tea-2.jpg" class="d-block w-100" alt="tea2">
          </div>
        </div>
        <a class="carousel-control-prev" href="#slider" role="button" data-slide="prev">
          <span class="carousel-control-prev-icon" aria-hidden="true"></span>
          <span class="sr-only">Previous</span>
        </a>
        <a class="carousel-control-next" href="#slider" role="button" data-slide="next">
          <span class="carousel-control-next-icon" aria-hidden="true"></span>
          <span class="sr-only">Next</span>
        </a>
      </div>
  	</div>

    <!-- grid item -->

    <!-- в этом участке проблема -->

    <div class="grid-posts">
  		<div class="container">
  			<div class="row">
  				<div class="col-md-3">
            <div class="card">
              <img class="card-img-top  card-item" src="img/card-1.jpg">
            </div>
          </div>
          <div class="col-md-3">
            <div class="card">
              <img class="card-img-top  card-item" src="img/card-2.jpg">
            </div>
          </div>
          <div class="col-md-3">
            <div class="card">
              <img class="card-img-top  card-item" src="img/card-2.jpg">
            </div>
          </div>
          <div class="col-md-3">
            <div class="card">
              <img class="card-img-top  card-item" src="img/card-2.jpg">
            </div>
          </div>
        </div>
      </div>
    </div>

    <!-- в этом участке проблема -->


    <!-- Optional JavaScript -->
    <!-- jQuery first, then Popper.js, then Bootstrap JS -->
    <script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script>
    <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
  </body>
</html>

body{
  min-width: 320px;
  font-size: 14px;
  font-family: 'Barlow', sans-serif;
  color: #626262;
}
img{
  max-width: 100%;
  height: auto;
}
a{
  color: #b4ad9e;
}
a:hover{
  color: #898377;
}
.slider{
  margin-top: 15px;
}
header .nav-item{
  text-transform: uppercase;
  margin-left: 10px;
}
.card-item{
  border-radius: 20px;
}

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2 answer(s)

A

Ankhena, 2020-04-25
@Meeeeeeeeeeepo

Open developer tools and see that .card has a border.

And it is even indicated in which line of which file it is written.

border: $card-border-width solid $card-border-color;

Go and edit the variable that is responsible for this border.

B

BaluSerhii, 2020-04-25
@BaluSerhii

Try for picture outline: 0;
This is most likely not a frame, but an external line