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@johnsardine
Forked from JoelBesada/dabblet.css
Created March 19, 2012 11:59
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CSS States
/* CSS States */
body {
background: url(http://dabblet.com/img/noise.png);
background-color: #F5F2F0;
font-family: Georgia, serif;
font-size: 18px;
line-height: 1.6em;
text-shadow: 0 2px 0 white;
color: #222;
}
.wrapper {
width: 900px;
margin: 70px auto;
}
h1 {
font-family: Helvetica, Arial, sans-serif;
text-align: center;
font-size: 1.6em;
}
a {
text-decoration: none;
color: #B46919;
}
a:visited {
color: #834B0F;
}
a:hover {
color: #E9A051;
}
.device {
display: inline-block;
position: relative;
background:#AD0F0F;
width: 230px;
height: 450px;
padding: 20px 15px;
margin: 20px;
border-radius: 20px;
border: 1px solid #410707;
border-bottom-width: 8px;
box-shadow: 0 2px 5px rgba(0,0,0,0.7),
inset 0 0 10px rgba(255,255,255,0.5),
inset 0 2px 2px rgba(255,255,255,0.25);
}
section {
display: inline-block;
vertical-align: top;
padding: 30px;
width: 500px;
}
small {
display: block;
margin-top: 20px;
opacity: 0.3;
text-align: center;
padding:
20px;
transition: opacity 0.5s;
}
small:hover {
opacity: 1;
}
.up, .down, .left, .right {
position: absolute;
z-index: 1001;
margin-left: 50%;
font-size: 40px;
width: 50px;
height: 50px;
background: #FFA03A;
border: 1px solid #915515;
box-shadow: 0 3px 0 #52300E,
inset 0 0 10px rgba(255,255,255,0.3);
appearance: none;
border-radius: 50px;
cursor: pointer;
}
.up:active, .down:active, .left:active, .right:active {
margin-top: 3px;
box-shadow: inset 0 1px 1px rgba(0,0,0,0.3);
}
.up:before, .down:before, .left:before, .right:before {
display: block;
position: absolute;
content: "";
width: 15px;
height: 15px;
border-radius: 15px;
background: #E4923D;
box-shadow: 0 2px 2px rgba(255,255,255,0.25),
inset 0 1px 0 rgba(0,0,0,0.5);
}
.up:after, .down:after, .left:after, .right:after {
display: block;
position: absolute;
content: "";
top: -5px;
left: -6px;
width: 60px;
height: 60px;
border-radius: 60px;
box-shadow: 0 2px 2px rgba(255,255,255,0.25),
inset 0 2px 2px rgba(0,0,0,0.5);
}
.up:active:after, .down:active:after, .left:active:after, .right:active:after {
top: -8px;
}
.up {
top: 300px;
left: -25px;
}
.up:before {
top: 5px;
left: 17px;
}
.down {
top: 400px;
left: -25px;
}
.down:before {
bottom: 5px;
left: 17px;
}
.left {
top: 350px;
left: -75px;
}
.left:before {
top: 17px;
left: 5px;
}
.right {
top: 350px;
left: 25px;
}
.right:before {
top: 17px;
right: 5px;
}
.up:active ~ .screen .char, .down:active ~ .screen .char, .left:active ~ .screen .char, .right:active ~ .screen .char {
transition: margin-top 2s linear,
margin-left 2s linear;
}
.up:active ~ .screen .char {
margin-top: -84px;
background-position: 0 -144px;
animation: walk-up 0.65s infinite;
}
.down:active ~ .screen .char {
margin-top: 90px;
background-position: 0 0;
animation: walk-down 0.65s infinite;
}
.left:active ~ .screen .char {
margin-left: -88px;
background-position: 0 -48px;
animation: walk-left 0.65s infinite;
}
.right:active ~ .screen .char {
margin-left: 88px;
background-position: 0 -96px;
animation: walk-right 0.65s infinite;
}
.screen {
position: relative;
margin: 0 auto;
padding: 128px 112px;
box-sizing: border-box;
width: 224px;
height: 256px;
overflow:hidden;
box-shadow: 0 0 20px rgba(255,255,255,0.25),
0 2px 1px rgba(255,255,255,0.15);
background: url("http://joelb.me/extassets/sprites/home-layer-1.png") no-repeat;
}
.overlay {
position: absolute;
width: 100%;
height: 100%;
top: 0;
left: 0;
background: url("http://joelb.me/extassets/sprites/home-layer-2.png") no-repeat;
box-shadow: inset 0 0 50px rgba(0,0,0,0.5);
z-index: 1000;
}
.char {
position: relative;
left: -16px;
background-image: url("http://joelb.me/extassets/sprites/old-man.png");
background-position: -32px 0;
width: 32px;
height: 48px;
transition-property: margin-top, margin-left, background-position;
transition-duration: 0;
transition-delay: 999999s;
transition-timing-function: linear;
}
@keyframes walk-up {
0%, 32.99% { background-position: 0 -144px; }
33%, 65.99% { background-position: 32px -144px; }
66%, 100% { background-position: -32px -144px; }
}
@keyframes walk-down {
0%, 32.99% { background-position: 0 0; }
33%, 65.99% { background-position: 32px 0; }
66%, 100% { background-position: -32px 0; }
}
@keyframes walk-left {
0%, 32.99% { background-position: 0 -48px; }
33%, 65.99% { background-position: 32px -48px; }
66%, 100% { background-position: -32px -48px; }
}
@keyframes walk-right {
0%, 32.99% { background-position: 0 -96px; }
33%, 65.99% { background-position: 32px -96px; }
66%, 100% { background-position: -32px -96px; }
}
<div class="wrapper">
<h1>Maintaining CSS Style States using "Infinite" Transition Delays</h1>
<div class="device">
<button class="up"></button>
<button class="down"></button>
<button class="left"></buton>
<button class="right"></button>
<div class="screen">
<div class="char"></div>
<div class="overlay"></div>
</div>
</div>
<section>
<p>
This demo is <strong>completely JavaScript-free</strong>.
Feel free to move the character around with the D-pad, and notice how it always
keeps its position after you stop moving.
</p>
<p>
This is made possible by using a virtually infinite transition delay, so that the
CSS rules never return to their default state. The character will always be stuck
in a transition and only moves when you hold down a button.
</p>
<p>
I've written a
<a target="_blank" href="http://joelb.me/blog/2012/maintaining-css-style-states-using-infinite-transition-delays/"> blog post </a> explanining how
this all works, but please keep in mind that things like this should ideally be handled
with Javascript. After all, this is a dirty hack, not a CSS feature.
</p>
</section>
<small>Credit goes to to <a target="_blank" href="http://www.tekepon.net/fsm/">First Seed Material</a> for the
character sprite, and <a target="_blank" href="http://vxresource.wordpress.com/2010/03/17/the-real-macks-tileset/">
Mack</a> for the map tileset.
</small>
</div>
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