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CSS CSS Basics (2014) Enhancing the Design With CSS Text Shadows and Box Shadows

analyn jane calado
analyn jane calado
3,523 Points

what is the rgba color value of firebrick?

what is the rgba color value of firebrick?

style.css
/* Complete the challenge by writing CSS below */
.main-heading {
  text-shadow:0px 0px 5px #be7b31;
}

.title {
  text-shadow:1px 3px 0 #e59740;
}

.main-header .main-header {
  box-shadow: 0 2px 15px #aaa,inset 0 0 60px 5px rgba(0 0 0 1);
}
index.html
<!DOCTYPE html>
<html>
  <head>
    <title>Lake Tahoe</title>
    <link rel="stylesheet" href="page.css">
    <link rel="stylesheet" href="style.css">
  </head>
  <body> 
    <header id="top" class="main-header">
      <span class="title">Journey Through the Sierra Nevada Mountains</span>
      <h1 class="main-heading">Lake Tahoe, California</h1>
    </header>

        <div class="primary-content">
            <p class="intro">
                Lake Tahoe is one of the most breathtaking attractions located in California. It's home to a number of ski resorts, summer outdoor recreation, and tourist attractions. Snow and skiing are a significant part of the area's reputation.
            </p>
            <a class="callout" href="#more">Find out more</a>
        </div><!-- End .primary-content -->

        <footer class="main-footer">
            <p>All rights reserved to the state of <a href="#">California</a>.</p>
            <a href="#top">Back to top &raquo;</a>
        </footer>
  </body>
</html>

1 Answer

The rgb value for Firebrick is 178,34,34. RGBa extends the RGB color model to include the alpha channel, allowing specification of the opacity of a color. The "A" at the end of RGB just changes the opacity of the color.

rgba()

Colors can be defined in the Red-green-blue-alpha model (RGBa) using the rgba() functional notation. RGBa extends the RGB color model to include the alpha channel, allowing specification of the opacity of a color. a means opacity: 0=transparent; 1=opaque;

rgba(255,0,0,0.1) /* 10% opaque red /
rgba(255,0,0,0.4) /
40% opaque red /
rgba(255,0,0,0.7) /
70% opaque red /
rgba(255,0,0, 1) /
full opaque red */