Bootstrap 5: Barvy

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Barvy textu

Bootstrap 5 má některé kontextové třídy, které lze použít k poskytnutí „významu prostřednictvím barev“.

Třídy pro barvy textu jsou:

.text-muted
.text-primary
.text-success
.text-info
.text-warning
.text-danger
.text-secondary
.text-white
.text-dark
.text-body
.text-light

Třída .text-body má výchozí barvu těla, často je černá.

Příklad

This text is muted.

This text is important.

This text indicates success.

This text represents some information.

This text represents a warning.

This text represents danger.

Secondary text.

Dark grey text.

Body text.

Light grey text.

Zkuste to sami →

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>

<div class="container mt-3">
  <h2>Contextual Colors</h2>
  <p>Use the contextual classes to provide &quot;meaning through colors&quot;:</p>
  <p class="text-muted">This text is muted.</p>
  <p class="text-primary">This text is important.</p>
  <p class="text-success">This text indicates success.</p>
  <p class="text-info">This text represents some information.</p>
  <p class="text-warning">This text represents a warning.</p>
  <p class="text-danger">This text represents danger.</p>
  <p class="text-secondary">Secondary text.</p>
  <p class="text-dark">This text is dark grey.</p>
  <p class="text-body">Default body color (often black).</p>
  <p class="text-light">This text is light grey (on white background).</p>
  <p class="text-white">This text is white (on white background).</p>
</div>

</body>
</html>

Můžete také přidat 50% neprůhlednost pro černý nebo bílý text pomocí tříd .text-black-50 nebo .text-white-50:

Příklad

Black text with 50% opacity on white background

White text with 50% opacity on black background

Zkuste to sami →

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>

<div class="container mt-3">
  <h2>Opacity Text Colors</h2>
  <p>Add 50% opacity for black or white text with the .text-black-50 or .text-white-50 classes:</p>
  <p class="text-black-50">Black text with 50% opacity on white background</p>
  <p class="text-white-50 bg-dark">White text with 50% opacity on black background</p>
</div>

</body>
</html>

Barvy pozadí

Třídy pro barvy pozadí jsou:

.bg-primary
.bg-success
.bg-info
.bg-warning
.bg-danger
.bg-secondary
.bg-dark
.bg-light

Příklad

Zkuste to sami →

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>

<div class="container mt-3">
  <h2>Contextual Backgrounds</h2>
  <p>Use the contextual background classes to provide &quot;meaning through colors&quot;.</p>
  <div class="bg-primary p-3"></div>
  <div class="bg-success p-3"></div>
  <div class="bg-info p-3"></div>
  <div class="bg-warning p-3"></div>
  <div class="bg-danger p-3"></div>
  <div class="bg-secondary p-3"></div>
  <div class="bg-dark p-3"></div>
  <div class="bg-light p-3"></div>
</div>

</body>
</html>

Výše uvedené třídy .bg-color nefungují dobře s textem, nebo alespoň musíte zadat správnou třídu .text-color, abyste získali správnou barvu textu pro každý Pozadí.

Můžete však použít .text-bg-color třídy a Bootstrap automaticky zpracuje příslušné barva textu pro každou barvu pozadí:

Příklad

This text is important.

This text indicates success.

This text represents some information.

This text represents a warning.

This text represents danger.

Secondary background color.

Dark grey background color.

Light grey background color.

Zkuste to sami →

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>

<div class="container mt-3">
  <h2>Background Color with Contrasting Text Color</h2>
  <p class="text-bg-primary">This text is important.</p>
  <p class="text-bg-success">This text indicates success.</p>
  <p class="text-bg-info">This text represents some information.</p>
  <p class="text-bg-warning">This text represents a warning.</p>
  <p class="text-bg-danger">This text represents danger.</p>
  <p class="text-bg-secondary">Secondary background color.</p>
  <p class="text-bg-dark">Dark grey background color.</p>
  <p class="text-bg-light">Light grey background color.</p>
</div>

</body>
</html>