- CSS Introduction
- CSS Syntax
- CSS Selectors
- How To Add CSS
- CSS Comments
- CSS Backgrounds
- CSS Borders
- CSS Margins
- CSS Padding
- CSS Height - Width
- CSS Box Model
- CSS Outline
- CSS Text
- CSS Links
- CSS Lists
- CSS Tables
- CSS Display
- CSS Max-width
- CSS Position
- CSS Overflow
- CSS Float
- CSS Inline-block
- CSS Align
- CSS Combinators
- CSS Pseudo-classes
- CSS Pseudo-elements
- CSS Opacity
- CSS Navigation Bar
- CSS Dropdowns
- CSS Image Gallery
- CSS Attr Selectors
- CSS Forms
- CSS Counters
- CSS Website Layout
- CSS !important
- CSS Rounded Corners
- CSS Border Images
- CSS Backgrounds
- CSS Colors
- CSS Color Keywords
- CSS Gradients
- CSS Radial Gradients
- CSS Text Effects
- CSS Web Fonts
- CSS 2D Transforms
- CSS 3D Transforms
- CSS Transitions
- CSS Animations
- CSS Tooltip
- CSS Image Reflection
- CSS The Object-fit
- CSS Object-position
- CSS Button
- CSS Pagination
- CSS Multiple Columns
- CSS User Interface
- CSS Variables
- CSS Box-sizing
- CSS Media Queries
- CSS Flexbox
CSS Image Gallery
Image Gallery
Image Gallery
The following image gallery is created with CSS
<html>
<head>
<style>
div.gallery {
margin: 5px;
border: 1px solid #ccc;
float: left;
width: 180px;
}
div.gallery:hover {
border: 1px solid #777;
}
div.gallery img {
width: 100%;
height: auto;
}
div.desc {
padding: 15px;
text-align: center;
}
</style>
</head>
<body>
<div class="gallery">
<a target="_blank" href="img_5terre.jpg">
<img src="img_5terre.jpg" alt="Cinque Terre" width="600" height="400">
</a>
<div class="desc">Add a description of the image here</div>
</div>
<div class="gallery">
<a target="_blank" href="img_forest.jpg">
<img src="img_forest.jpg" alt="Forest" width="600" height="400">
</a>
<div class="desc">Add a description of the image here</div>
</div>
<div class="gallery">
<a target="_blank" href="img_lights.jpg">
<img src="img_lights.jpg" alt="Northern Lights" width="600" height="400">
</a>
<div class="desc">Add a description of the image here</div>
</div>
<div class="gallery">
<a target="_blank" href="img_mountains.jpg">
<img src="img_mountains.jpg" alt="Mountains" width="600" height="400">
</a>
<div class="desc">Add a description of the image here</div>
</div>
</body>
</html>
Image Sprites
An image sprite is a collection of images put into a single image.
A web page with many images can take a long time to load and generates multiple server requests.
Using image sprites will reduce the number of server requests and save bandwidth.
<html>
<head>
<style>
#home {
width: 46px;
height: 44px;
background: url(img_navsprites.gif) 0 0;
}
#next {
width: 43px;
height: 44px;
background: url(img_navsprites.gif) -91px 0;
}
</style>
</head>
<body>
<img id="home" src="img_trans.gif" width="1" height="1">
<img id="next" src="img_trans.gif" width="1" height="1">
</body>
</html>
Image Sprites - Create A Navigation List
We want to use the sprite image ("img_navsprites.gif") to create a navigation list.
We will use an HTML list, because it can be a link and also supports a background image:
<html>
<head>
<style>
#navlist {
position: relative;
}
#navlist li {
margin: 0;
padding: 0;
list-style: none;
position: absolute;
top: 0;
}
#navlist li, #navlist a {
height: 44px;
display: block;
}
#home {
left: 0px;
width: 46px;
background: url('img_navsprites.gif') 0 0;
}
#prev {
left: 63px;
width: 43px;
background: url('img_navsprites.gif') -47px 0;
}
#next {
left: 129px;
width: 43px;
background: url('img_navsprites.gif') -91px 0;
}
</style>
</head>
<body>
<ul id="navlist">
<li id="home"><a href="default.asp"></a></li>
<li id="prev"><a href="css_intro.asp"></a></li>
<li id="next"><a href="css_syntax.asp"></a></li>
</ul>
</body>
</html>
Image Sprites - Hover Effect
Because this is one single image, and not six separate files, there will be no loading delay when a user hovers over the image.
We only add three lines of code to add the hover effect:
<html>
<head>
<style>
#navlist {
position: relative;
}
#navlist li {
margin: 0;
padding: 0;
list-style: none;
position: absolute;
top: 0;
}
#navlist li, #navlist a {
height: 44px;
display: block;
}
#home {
left: 0px;
width: 46px;
background: url('img_navsprites_hover.gif') 0 0;
}
#prev {
left: 63px;
width: 43px;
background: url('img_navsprites_hover.gif') -47px 0;
}
#next {
left: 129px;
width: 43px;
background: url('img_navsprites_hover.gif') -91px 0;
}
#home a:hover {
background: url('img_navsprites_hover.gif') 0 -45px;
}
#prev a:hover {
background: url('img_navsprites_hover.gif') -47px -45px;
}
#next a:hover {
background: url('img_navsprites_hover.gif') -91px -45px;
}
</style>
</head>
<body>
<ul id="navlist">
<li id="home"><a href="default.asp"></a></li>
<li id="prev"><a href="css_intro.asp"></a></li>
<li id="next"><a href="css_syntax.asp"></a></li>
</ul>
</body>
</html>
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