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CSS CSS Selectors Going Further with Attribute Selectors and Pseudo-Classes :first-child and :last-child Challenge

Neftali Mendez
Neftali Mendez
6,226 Points

How to set up values for border-radius top and bottom left to 5px?

border-radius: ;

style.css
/* Complete the challenge by writing CSS below */

.main-nav li:first-child {
  border: none;
  border-radius: 5px 0 5px 0;
}
index.html
<!DOCTYPE html>
<html>
<head>
    <title>Selectors</title>
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href='http://fonts.googleapis.com/css?family=Nunito:400,300' rel='stylesheet' type='text/css'>
  <link rel="stylesheet" href="page.css">
  <link rel="stylesheet" href="style.css">
</head>
<body>
    <header>
      <h1>My Site!</h1>
      <ul class="main-nav">
        <li><a href="#">Home</a></li>
        <li><a href="#">About</a></li>
        <li><a href="#">Work</a></li>
        <li><a href="#">Contact</a></li>
      </ul>
    </header>
    <div>
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    </div>
</body>
</html>

2 Answers

Ryan Field
PLUS
Ryan Field
Courses Plus Student 21,242 Points

Since border-radius is applied to corners, the order goes top-left, top-right, bottom-right, and bottom-left (i.e. clockwise from top-left). So, if you want the top and bottom left corners to be curved, you would use this:

.main-nav li:first-child {
  border: none;
  border-radius: 5px 0 0 5px;
}

Alternatively, you can use:

border-top-left-radius: 5px;
border-bottom-left-radius: 5px;

border-radius is declared in the order top-left, top-right, bottom-right, bottom-left. In your example you are setting the top-left and bottom-right. Change it to:

.main-nav li:first-child {
  border: none;
  border-radius: 5px 0 0 5px;
}

And this will target the corners you asked for. Also, the border radius property is shorthand for border-top-left-radius, border-top-right-radius, border-bottom-right-radius and border-bottom-left-radius. You could also in theory do:

.main-nav li:first-child {
  border: none;
  border-top-left-radius: 5px;
  border-bottom-left-radius: 5px;
}

Check out the documentation on MDN for more: Border-radius - CSS | MDN