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CSS

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CSS Base

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                <g tabindex=0><b><m></m></b></g>
!

CSS 

              
                $s: 60px; /* control the size */
/* If the movement is off you have to update the below variable
   go here and follow the steps: https://codepen.io/t_afif/pen/ZENaPPG/bdd15282dc854a3e77d6e40232ee5787
   You need to perform a scroll with one keypress 
   to get the amount of pixel you need to move by 
*/
$v: 40px;


/* don't touch this. The game is static not dynamic */
$n: 10;  
$m: 5;  
@property --s1 {
	syntax: '<integer>';
	inherits: true;
	initial-value: 0
}
@property --x {
	syntax: '<integer>';
	inherits: true;
	initial-value: 0
}
@property --y {
	syntax: '<integer>';
	inherits: true;
	initial-value: 0
}
b {
  display: block;
  width: $n*$s;
  height: $m*$s;
  position: sticky;
  left: 0;
  top: 0;
  --g:conic-gradient(var(--b) 0 0) no-repeat;
  background: 
    conic-gradient(from 90deg at 1px 1px,#0000 25%,var(--c1) 0)
    -1px -1px/calc((100% + 1px)/#{$n}) calc((100% + 1px)/#{$m}),
    url(https://assets.codepen.io/1480814/dii.png) no-repeat 
     calc(100% - #{.1*$s}) calc(100% - #{.1*$s})/auto #{.8*$s},
    var(--g) 0 0/#{2*$s} #{$s},
    var(--g) #{$s} #{3*$s}/#{3*$s} #{$s},
    var(--g) #{3*$s} #{2*$s}/#{3*$s} #{$s},
    var(--g) #{5*$s} #{$s}/#{3*$s} #{$s},
    var(--g) #{5*$s} #{4*$s}/#{3*$s} #{$s},
    var(--g) #{7*$s} #{3*$s}/#{3*$s} #{$s},
    var(--g) #{$s} 0/#{$s} #{4*$s},
    var(--g) #{5*$s} #{$s}/#{$s} #{4*$s},
    var(--g) #{9*$s} 0/#{$s} #{5*$s},
    var(--g) #{7*$s} 0/#{$s} #{5*$s},
    var(--g) #{7*$s} 0/#{3*$s} #{$s},
    url(https://assets.codepen.io/1480814/w.jpg) 0 0/#{$s} #{$s};
  animation: x linear,y linear;
  animation-timeline: scroll(nearest inline),scroll(nearest block);
  container-name: b;
}
@keyframes x{to {--x: #{$n - 1}}}
@keyframes y{to {--y: #{$m - 1}}}
m {
  position: absolute;
  translate: calc(var(--x)*100%) calc(var(--y)*100%);
  width: $s;
  aspect-ratio:1;
  opacity:0;
  background: url(https://assets.codepen.io/1480814/ad.png) center/cover;
}
b:after {
  content: "TIME - " counter(s1,decimal-leading-zero) "s";
  white-space: pre-wrap;
  color: #fefeff;
  font-size: 35px;
  visibility: hidden;
  font-variant-numeric: tabular-nums;
  counter-reset: s1 var(--s1);
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1*$s;
  text-align: center;
  padding: 8px;
  z-index: 99989;
  animation: 
    f .1s linear forwards paused,
    s1 60s linear forwards paused;
  @container style(--x: #{$n - 1}) and style(--y: #{$m - 1}) {
    animation-play-state: running, paused !important;
    --_c: "\a Congratulations!\a\aYou did it in " counter(s1,decimal-leading-zero) "s";
  }
  @container 
    (style(--x: 0) and (style(--y: 1) or style(--y: 2) or style(--y: 3) or style(--y: 4)))
 or (style(--x: 1) and (style(--y: 4)))
 or (style(--x: 2) and (style(--y: 0) or style(--y: 1) or style(--y: 2) or style(--y: 4)))
 or (style(--x: 3) and (style(--y: 0) or style(--y: 1) or style(--y: 4)))
 or (style(--x: 4) and (style(--y: 0) or style(--y: 1) or style(--y: 3) or style(--y: 4)))
 or (style(--x: 5) and (style(--y: 0)))
 or (style(--x: 6) and (style(--y: 0) or style(--y: 2) or style(--y: 3)))
 or (style(--x: 8) and (style(--y: 1) or style(--y: 2) or style(--y: 4))) {
    animation-play-state: running, paused !important;
  }
}
@keyframes f {
  1%,to {
    content: var(--_c,"\aGame Over\a\a Refresh the page\a and try again ");
    font-size: 50px;
    background: var(--b);
    inset: 0 0 -1*$s;
  }
}
@keyframes s1 {to{--s1:60}}
g {
  display: block;
  width: $n*$s + ($n - 1)*$v;
  height: ($m + 1)*$s + ($m - 1)*$v;
}
body {
  position: relative;
  margin: auto auto $s/2;
  overflow: auto;
  scrollbar-width: none;
  width: $n*$s;
  height: ($m + 1)*$s;
  border: 5px solid var(--c1);
  background: var(--c1);
  cursor: pointer;
}
b:before {
  content:"Grab the dino without\a touching the wall\a\aUse your keyboard to move\a\a\a🖱️Click to start";
  font-size: 30px;
  white-space: pre;
  text-align: center;
  position: absolute;
  inset: 0 0 -1*$s;
  padding-top: 20px;
  pointer-events: none;
  z-index: 5896;
  color: #fefeff;
  background: 
    url(https://assets.codepen.io/1480814/ad.png) bottom/90px auto no-repeat,
    url(https://assets.codepen.io/1480814/k.png) 50% 55%/90px auto no-repeat var(--b);
}
body:focus-within {
  cursor: none;
}
body:focus-within b:before {
  opacity: 0;
}
body:focus-within m {
  opacity: 1;
}
body:focus-within b:after {
  visibility: visible;
  animation-play-state: paused,running;
}
html {
  font-family: system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;
  font-weight: 900;
  min-height:100vh;
  overflow: hidden;
  display: grid;
  --c1: #252521;
  --b: #4c6ef5;
  background: #ced4da;
}
@media (width < ($n + 1)*$s), (height < ($m + 1)*$s) {
  html:after {
    content: "Sorry but your screen is too small for this game\a\a Buy a bigger one and try again!";
    white-space: pre-wrap;
    background: var(--b);
    position: absolute;
    inset: 0;
    z-index: calc(infinity);
    display: grid;
    place-content: center;
    text-align: center;
    font-size: 40px;
    padding: 40px;
    color: #fff;
  }
}
@supports not (animation-timeline: scroll()) {
  html:after {
    content: "Firefox and Safari users aren't allowed\a✋ \aThis is a chromium experimentation\a(Use Chrome or Edge)";
    white-space: pre-wrap;
    background: var(--b);
    position: absolute;
    inset: 0;
    z-index: calc(infinity);
    display: grid;
    place-content: center;
    text-align: center;
    font-size: 40px;
    padding: 40px;
    color: #fff;
  }
}
!

JS
!
999px

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