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index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Responsive Snake</title>
<meta
name="description"
content="If a snake was responsive, would it be like this or like this?"
/>
<style>
:root {
--right-fold: -5 / -1;
--full-width: 1 / -1;
--outline-color: #000;
--snake-color: #00ff00;
--border-size: 3px;
--fold-border-radius: 1.5rem;
--section-size: 3.125rem;
}
*,
::before,
::after {
box-sizing: border-box;
}
body {
font-family: sans-serif;
margin: 0;
min-height: 100vh;
display: flex;
flex-direction: column;
}
h1,
p {
margin-left: auto;
margin-right: auto;
padding-left: 1rem;
padding-right: 1rem;
}
h1 {
margin-top: 0;
margin-bottom: 0;
padding-top: 1rem;
padding-bottom: 0.5rem;
}
p {
margin-top: 0;
}
a,
a:visited {
color: #f0efef;
text-decoration: none;
}
a:hover {
text-decoration: underline;
}
.layout-grid {
display: grid;
grid-template-columns: 2fr min-content min-content 2fr;
grid-template-rows: 2rem 1fr;
row-gap: 1rem;
margin-left: auto;
margin-right: auto;
margin-bottom: 2rem;
padding-left: 1rem;
padding-right: 1rem;
width: 100%;
}
.footer {
width: 100%;
padding: 1rem;
background-color: #2c3e50;
margin-top: auto;
text-align: center;
}
label[for="slither"],
label[for="shrink"],
#slither,
#shrink {
grid-row: 1;
align-self: center;
}
label[for="slither"] {
grid-column: 1;
justify-self: flex-end;
}
label[for="shrink"] {
grid-column: 4;
}
#slither {
grid-column: 2;
}
#shrink {
grid-column: 3;
}
input[type="radio"] {
margin-top: 0;
margin-bottom: 0;
}
.snake-den {
grid-column: 1 / -1;
grid-row: 2;
}
/* Display logic */
#slither:checked ~ .snake-den {
display: grid;
}
#shrink:checked ~ .snake-den {
display: flex;
}
/* Common snake css */
/* Snake head */
header {
position: relative;
width: 60px;
}
header svg {
position: absolute;
height: 82px;
left: -3px;
top: -19px;
}
/* This covers the borders between the body and head */
header::after {
content: "";
position: absolute;
display: block;
background-color: var(--snake-color);
width: 6px;
top: var(--border-size);
bottom: var(--border-size);
left: calc(-1 * var(--border-size));
}
/* Snake tail */
footer {
position: relative;
width: var(--section-size);
margin-left: auto;
}
footer svg {
position: absolute;
height: var(--section-size);
right: -2px;
}
/* This covers the border between the tail and rest of body */
footer::after {
content: "";
position: absolute;
right: -4px;
display: block;
background-color: var(--snake-color);
width: 15px;
top: var(--border-size);
bottom: var(--border-size);
}
/* Snake body */
section {
height: var(--section-size);
background-color: var(--snake-color);
}
/* Snake slither css */
.snake-den {
display: none;
width: 100%;
grid-template-columns: repeat(20, 1fr);
grid-template-rows: repeat(11, 1fr);
}
/* Odd sections are the long horizontal parts */
section:nth-child(2n) {
border: var(--border-size) solid var(--outline-color);
}
/* Even sections are the "folds". The folds can only have left and
right border, and they use pseudoelements to cover up the top and bottom border
from the horizontal parts */
section:nth-child(2n + 1) {
border-left: var(--border-size) solid var(--outline-color);
border-right: var(--border-size) solid var(--outline-color);
position: relative;
}
/* Create the pseudoelements that cover top and bottom borders */
section:nth-child(2n + 1)::before,
section:nth-child(2n + 1)::after {
content: "";
position: absolute;
left: 0;
right: 0;
height: var(--border-size);
background-color: var(--snake-color);
}
section:nth-child(2n + 1)::before {
top: calc(-1 * var(--border-size));
}
section:nth-child(2n + 1)::after {
bottom: calc(-1 * var(--border-size));
}
/* Remove left border from the first section so it blends with the tail */
section:first-of-type {
border-left: none;
}
section:nth-of-type(1) {
grid-column: 2 / -1;
border-top-right-radius: var(--fold-border-radius);
}
section:nth-of-type(2) {
grid-column: var(--right-fold);
}
section:nth-of-type(3) {
grid-column: var(--full-width);
grid-row: 3;
border-bottom-right-radius: var(--fold-border-radius);
border-top-left-radius: var(--fold-border-radius);
}
section:nth-of-type(4) {
grid-column: 1;
grid-row: 4;
}
section:nth-of-type(5) {
grid-column: var(--full-width);
grid-row: 5;
border-top-right-radius: var(--fold-border-radius);
border-bottom-left-radius: var(--fold-border-radius);
}
section:nth-of-type(6) {
grid-column: var(--right-fold);
grid-row: 6;
}
section:nth-of-type(7) {
grid-column: var(--full-width);
grid-row: 7;
border-bottom-right-radius: var(--fold-border-radius);
border-top-left-radius: var(--fold-border-radius);
}
section:nth-of-type(8) {
grid-column: 1;
grid-row: 8;
}
section:nth-of-type(9) {
grid-column: var(--full-width);
grid-row: 9;
border-top-right-radius: var(--fold-border-radius);
border-bottom-left-radius: var(--fold-border-radius);
}
section:nth-of-type(10) {
grid-column: var(--right-fold);
grid-row: 10;
}
section:nth-of-type(11) {
grid-column: 10 / -1;
grid-row: 11;
border-bottom-right-radius: var(--fold-border-radius);
}
header {
grid-row: 11;
grid-column: 9;
transform: scale(-1);
}
@media (min-width: 24rem) {
:root {
--right-fold: -4 / -1;
}
}
@media (min-width: 34rem) {
:root {
--right-fold: -3 / -1;
}
layout-grid {
width: 34rem;
}
.snake-den {
grid-template-rows: repeat(9, 1fr);
}
section:nth-of-type(11),
section:nth-of-type(10) {
display: none;
}
section:nth-of-type(9) {
grid-column: 1 / 10;
border-top-right-radius: unset;
}
header {
transform: none;
grid-row: 9;
grid-column: 10;
}
}
@media (min-width: 48rem) {
.layout-grid {
width: 48rem;
}
.snake-den {
grid-template-rows: repeat(7, 1fr);
}
section:nth-of-type(8),
section:nth-of-type(9) {
display: none;
}
section:nth-of-type(7) {
grid-column: -1 / 6;
border-top-left-radius: unset;
}
header {
grid-column: 5;
grid-row: 7;
transform: scale(-1);
}
}
@media (min-width: 62rem) {
:root {
--right-fold: -2;
}
.layout-grid {
width: 62rem;
}
.snake-den {
grid-template-rows: repeat(5, 1fr);
}
section:nth-of-type(6),
section:nth-of-type(7) {
display: none;
}
section:nth-of-type(5) {
grid-column: 1 / 15;
border-top-right-radius: unset;
}
header {
transform: none;
grid-row: 5;
grid-column: 15;
}
}
@media (min-width: 75rem) {
.layout-grid {
width: 75rem;
}
.snake-den {
grid-template-rows: repeat(3, 1fr);
}
section:nth-of-type(4),
section:nth-of-type(5) {
display: none;
}
section:nth-of-type(3) {
grid-column: 5 / -1;
grid-row: 3;
border-top-left-radius: unset;
}
header {
grid-row: 3;
grid-column: 4;
transform: scale(-1);
margin-left: auto;
}
}
@media (min-width: 90rem) {
.layout-grid {
width: 90rem;
}
section:nth-of-type(3) {
grid-column: 16 / -1;
}
header {
grid-row: 3;
grid-column: 15;
}
}
@media (min-width: 112rem) {
.layout-grid {
width: 112rem;
}
.snake-den {
grid-template-rows: 1fr;
}
section:nth-of-type(2),
section:nth-of-type(3) {
display: none;
}
section:nth-of-type(1) {
grid-column: 2 / 20;
border-top-right-radius: unset;
}
header {
grid-row: 1;
grid-column: 20;
margin-left: unset;
transform: none;
}
}
/* Snake shrink css */
#shrink:checked ~ .snake-den section {
display: none;
}
#shrink:checked ~ .snake-den section:first-of-type {
display: block;
flex-grow: 1;
border-radius: 0;
}
#shrink:checked ~ .snake-den header {
transform: none;
}
</style>
</head>
<body>
<h1>Responsive Snake</h1>
<p>Resize your browser window!</p>
<div class="layout-grid">
<label for="slither">Slither</label>
<label for="shrink">Shrink</label>
<input type="radio" name="mode" id="slither" checked="" />
<input type="radio" name="mode" id="shrink" />
<div class="snake-den" aria-hidden="true">
<footer>
<svg
fill="none"
xmlns="http://www.w3.org/2000/svg"
viewBox="0 0 47 53"
>
<path
d="M33.361 2H45v49H31.337l-15.18-12.783L3 27.033l13.157-15.446L33.36 2Z"
fill="#0F0"
stroke="#000"
stroke-width="3"
/>
</svg>
</footer>
<section></section>
<section></section>
<section></section>
<section></section>
<section></section>
<section></section>
<section></section>
<section></section>
<section></section>
<section></section>
<section></section>
<header>
<svg
fill="none"
xmlns="http://www.w3.org/2000/svg"
viewBox="0 0 75 82"
>
<path
d="M2 67.792v-47c16-12.5 12-9.167 37-17.5 10-3.333 18.5 0 11.5 7.5C38.538 23.61 39.833 25.46 34 28.292c-10.5 5.1-17 19.3 0 29.5 10 6 17.167 15.667 16.5 21.5-4.333 3-21.525-2.546-27-5-14.5-6.5-16.333-6.833-21.5-6.5Z"
fill="#0F0"
stroke="#000"
stroke-width="3"
/>
<path
d="M61.371 44.818 26 38v10.91L61.371 53 71.5 59l-6.737-10.09L73 40.726l-11.629 4.091Z"
fill="red"
stroke="#000"
stroke-width="3"
/>
<circle cx="24.5" cy="19.5" r="2.5" fill="#000" />
</svg>
</header>
</div>
</div>
<div class="footer">
<a
href="https://github.com/luka-bacic/responsive-snake"
target="_blank"
rel="noopener noreferrer"
>What is this?</a
>
</div>
</body>
</html>