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snake.css
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/* author: https://codepen.io/jackrugile/pen/bGRWbK
Jack Rugile
*/
/*================================================
General
================================================*/
* {
box-sizing: border-box;
}
html,
body {
background-color: #000;
height: 100%;
}
body {
background: #222;
background: radial-gradient(#333, #111);
background-position: center center;
background-repeat: no-repeat;
background-size: cover;
color: #fff;
font: 100%/1.5 sans-serif;
overflow: hidden;
}
/*================================================
Score
================================================*/
.score {
color: rgba(255, 255, 255, 0.5);
font-size: 16px;
font-weight: bold;
padding-top: 5px;
text-align: center;
}
/*================================================
Stage
================================================*/
.stage {
bottom: 0;
left: 0;
margin: auto;
position: absolute;
right: 0;
top: 0;
z-index: 2;
}
/*================================================
Tiles
================================================*/
.tile {
background: rgba(0, 0, 0, 0.15);
position: absolute;
transition-property:
background,
box-shadow,
opacity,
transform
;
transform: translateZ(0);
transition-duration: 3000ms;
}
.tile:before {
bottom: 0;
content: '';
height: 0;
left: 0;
margin: auto;
opacity: 0;
position: absolute;
right: 0;
top: 0;
width: 0;
transition: opacity 300ms;
}
.tile.path:before {
opacity: 1;
}
.tile.up:before {
border-bottom: 4px inset rgba(255, 255, 255, 0.15);
border-left: 4px solid transparent;
border-right: 4px solid transparent;
}
.tile.down:before {
border-top: 4px inset rgba(255, 255, 255, 0.15);
border-left: 4px solid transparent;
border-right: 4px solid transparent;
}
.tile.left:before {
border-right: 4px inset rgba(255, 255, 255, 0.15);
border-top: 4px solid transparent;
border-bottom: 4px solid transparent;
}
.tile.right:before {
border-left: 4px inset rgba(255, 255, 255, 0.15);
border-top: 4px solid transparent;
border-bottom: 4px solid transparent;
}
@media (max-width: 900px), (max-height: 900px) {
.tile.up:before,
.tile.down:before,
.tile.left:before,
.tile.right:before {
border-width: 3px;
}
}
@media (max-width: 500px), (max-height: 500px) {
.tile.up:before,
.tile.down:before,
.tile.left:before,
.tile.right:before {
border-width: 2px;
}
}
.tile.pressed {
background: rgba(0, 0, 0, 0.3);
box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.6);
transition-duration: 0ms;
}