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css_3_transitions.html
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css_3_transitions.html
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<!doctype html>
<html >
<head>
<title>CSS3: transizioni e opacità</title>
<link rel="stylesheet" type="text/css" href="iw_examples.css"/>
<meta charset="utf-8"/>
<style type="text/css">
.transition1 {
transition: border 1s, background 2s, font-size 2s;
-moz-transition: border 1s, background 2s, font-size 2s;
-webkit-transition: border 1s, background 2s, font-size 2s;
-o-transition: border 1s, background 2s, font-size 2s;
background: transparent;
border: 2px solid grey;
}
.transition1:hover {
background: cyan;
border: 2px solid red;
font-size: 150%
}
.transition2-holder, .opacity3-holder {
position: relative;
}
.transition2 {
transition: all 2s;
-moz-transition: all 2s;
-webkit-transition: all 2s;
-o-transition: all 2s;
background: red;
position: absolute;
left:0;
}
.transition2-holder:hover .transition2{
left:150px;
}
.opacity1, .opacity2 {
background: blue;
opacity:0.4;
filter:alpha(opacity=40);
}
.opacity1:hover, .opacity2:hover {
opacity:1;
filter:alpha(opacity=100);
}
.opacity2 {
transition: opacity 2s;
-moz-transition: opacity 2s;
-webkit-transition: opacity 2s;
-o-transition: opacity 2s;
}
.opacity3 {
position: absolute;
right:5px;
bottom:5px;
width: 30px;
height: 30px;
background: red;
opacity:0;
filter:alpha(opacity=0);
transition: opacity 2s;
-moz-transition: opacity 2s;
-webkit-transition: opacity 2s;
-o-transition: opacity 2s;
}
.opacity3-holder:hover .opacity3{
opacity:1;
filter:alpha(opacity=100);
}
</style>
</head>
<body>
<h1 class="sezione">CSS3: transizioni e opacità</h1>
<h2 class="sezione">Transizioni</h2>
<p>La proprietà <i>transition</i> non è ancora supportata da tutti i browser allo stesso modo.
Per Opera, Safari, Firefox e Chrome sono disponibili estenzioni specifiche con la stessa sintassi, mentre
internet explorer non ha alcun supporto.</p>
<div class="esempi">
<div class="esempio"><div class="rendering">
<div class="transition1">
<p>bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla</p>
<p><b>bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla</b></p>
</div>
</div><div class="sorgente">
<h3>CSS</h3>
<p> .transition1 {
transition: border 1s, background 2s, font-size 2s;
-moz-transition: border 1s, background 2s, font-size 2s;
-webkit-transition: border 1s, background 2s, font-size 2s;
-o-transition: border 1s, background 2s, font-size 2s;
background: transparent;
border: 2px solid grey;
} </p>
<p> .transition1:hover {
background: cyan;
border: 2px solid red;
font-size: 150%
} </p>
<h3>HTML</h3>
<div class="block-container">
<p><div class="transition1">
<div class="block-container">
<p>bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla</p>
<p><b>bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla</b></p>
</div>
</div> </p>
</div>
</div></div>
<div class="esempio"><div class="rendering">
<div class="transition2-holder">
<p>bla, bla, bla, bla, bla, bla, bla</p>
<div class="transition2">
<p>bla, bla, bla, bla, bla, bla, bla</p>
</div>
</div>
</div><div class="sorgente">
<h3>CSS</h3>
<p> .transition2-holder {
position: relative;
} </p>
<p> .transition2 {
transition: all 2s;
-moz-transition: all 2s;
-webkit-transition: all 2s;
-o-transition: all 2s;
background: red;
position: absolute;
left:0;
} </p>
<p> .transition2-holder:hover .transition2{
left:150px;
} </p>
<h3>HTML</h3>
<div class="block-container">
<p> <div class="transition2-holder"></p>
<div class="block-container">
<p> <p>bla, bla, bla, bla, bla, bla, bla</p></p>
<p> <div class="transition2"></p>
<div class="block-container">
<p><p>bla, bla, bla, bla, bla, bla, bla</p></p>
</div>
<p></div> </p>
</div>
<p></div></p>
</div>
</div></div>
</div>
<h2 class="sezione">Opacità</h2>
<p>La proprietà <i>opacity</i> non è supportata da internet explorer fino alle versione 8. Per ottenere un effetto simile, è
necessario utilizzare la proprietà browser-specifica <i>filter</i>, con una diversa sintassi.</p>
<div class="esempi">
<div class="esempio"><div class="rendering">
<div class="opacity1">
<p>bla, bla, bla, bla, bla, bla, bla</p>
<p>bla, bla, bla, bla, bla, bla, bla</p>
</div>
<div class="opacity2">
<p>bla, bla, bla, bla, bla, bla, bla</p>
<p>bla, bla, bla, bla, bla, bla, bla</p>
</div>
</div><div class="sorgente">
<h3>CSS</h3>
<p> .opacity1, .opacity2 {
background: blue;
opacity:0.4;
filter:alpha(opacity=40);
} </p>
<p> .opacity1:hover, .opacity2:hover {
opacity:1;
filter:alpha(opacity=100);
} </p>
<p> .opacity2 {
transition: opacity 2s;
-moz-transition: opacity 2s;
-webkit-transition: opacity 2s;
-o-transition: opacity 2s;
}</p>
<h3>HTML</h3>
<div class="block-container">
<p> <div class="opacity1">
<div class="block-container">
<p> <p>bla, bla, bla, bla, bla, bla, bla</p>
<p>bla, bla, bla, bla, bla, bla, bla</p></p>
</div>
<p> </div> </p>
</div>
<div class="block-container">
<p> <div class="opacity2">
<div class="block-container">
<p> <p>bla, bla, bla, bla, bla, bla, bla</p>
<p>bla, bla, bla, bla, bla, bla, bla</p></p>
</div>
<p> </div> </p>
</div>
</div></div>
<div class="esempio"><div class="rendering">
<div class="opacity3-holder">
<p>bla, bla, bla, bla, bla, bla, bla</p>
<p>bla, bla, bla, bla, bla, bla, bla</p>
<p>bla, bla, bla, bla, bla, bla, bla</p>
<div class="opacity3"> </div>
<p>bla, bla, bla, bla, bla, bla, bla</p>
<p>bla, bla, bla, bla, bla, bla, bla</p>
<p>bla, bla, bla, bla, bla, bla, bla</p>
</div>
</div><div class="sorgente">
<h3>CSS</h3>
<p> .opacity3-holder {
position: relative;
} </p>
<p> .opacity3 {
position: absolute;
right:5px;
bottom:5px;
width: 30px;
height: 30px;
background: red;
opacity:0;
filter:alpha(opacity=0);
transition: opacity 2s;
-moz-transition: opacity 2s;
-webkit-transition: opacity 2s;
-o-transition: opacity 2s;
} </p>
<p> .opacity3-holder:hover .opacity3{
opacity:1;
filter:alpha(opacity=100);
} </p>
<h3>HTML</h3>
<div class="block-container">
<p> <div class="opacity3-holder">
<div class="block-container">
<p><p>bla, bla, bla, bla, bla, bla, bla</p>
<p>bla, bla, bla, bla, bla, bla, bla</p>
<p>bla, bla, bla, bla, bla, bla, bla</p></p>
</div>
<div class="block-container">
<p><div class="opacity3">&nbsp;</div> </p>
</div>
<div class="block-container">
<p><p>bla, bla, bla, bla, bla, bla, bla</p>
<p>bla, bla, bla, bla, bla, bla, bla</p>
<p>bla, bla, bla, bla, bla, bla, bla</p></p>
</div>
</div></p>
</div>
</div></div>
</div>
</body>
</html>