Bootstrap 5 provides some representative color classes: You can set the text color transparency to 50%, using the Use in links The classes that provide background colors include: Note that the background color does not set the color of the text, and in some cases you need to match the Important background colors。 Successfully executed background color. Information prompt background color. Warning background color Dangerous background color. Subtitle background color. Dark gray background color. Light gray background color.
In recent years, Geographic Information Systems (GIS) have undergone rapid development in both theoretical and practical dimensions. GIS has been widely applied for modeling and decision-making support across various fields such as urban management, regional planning, and environmental remediation, establishing geographic information as a vital component of the information era. The introduction of the “Digital Earth” concept has further accelerated the advancement of GIS, which serves as its technical foundation. Concurrently, scholars have been dedicated to theoretical research in areas like spatial cognition, spatial data uncertainty, and the formalization of spatial relationships. This reflects the dual nature of GIS as both an applied technology and an academic discipline, with the two aspects forming a mutually reinforcing cycle of progress. .text-muted , .text-primary , .text-success , .text-info , .text-warning , .text-danger , .text- secondary , .text-white , .text-dark , .text-body (Default color, black) and .text-light : 7.6.1. Example ¶
<div class="container">
<h2>Text color representing the specified meaningh2>
<p class="text-muted">Soft text.p>
<p class="text-primary">Important text.p>
<p class="text-success">The text of successful execution.p>
<p class="text-info">Text representing some prompt information.p>
<p class="text-warning">Warning text.p>
<p class="text-danger">Dangerous operation text.p>
<p class="text-secondary">Subtitle.p>
<p class="text-dark">Dark gray text.p>
<p class="text-body">The default color is black.p>
<p class="text-light">Light gray text (unclear on a white background).p>
<p class="text-white">White text (unclear on a white background).p>
div>
.text-black-50 or .text-white-50 class: 7.6.2. Example ¶
<p class="text-black-50">Black text with a transparency of 50% and a background of white.p>
<p class="text-white-50 bg-dark">White text with a transparency of 50% and a black background.p>
7.6.3. Example ¶
<div class="container">
<h2>text colorh2>
<p>Move the mouse to the link.p>
<a href="#" class="text-muted">Soft links.a>
<a href="#" class="text-primary">Main link.a>
<a href="#" class="text-success">Successfully linked.a>
<a href="#" class="text-info">Information text link.a>
<a href="#" class="text-warning">Warning link.a>
<a href="#" class="text-danger">Dangerous links.a>
<a href="#" class="text-secondary">Subtitle link.a>
<a href="#" class="text-dark">Dark gray links.a>
<a href="#" class="text-light">Light gray links.a>
div>
Background color ¶
.bg-primary , .bg-success , .bg-info , .bg- warning , .bg-danger , .bg-secondary , .bg-dark and .bg-light .text-\* class is used together. 7.6.4. Example ¶
Background
Principles, Technologies, and Methods of Geographic Information Systems
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