Read the copy in the accordion sections for some info about how this was made.
This version uses radio buttons instead of checkboxes so that only one section of the accordion can be open at any given time.
A Pen by Alex Bergin on CodePen.
Read the copy in the accordion sections for some info about how this was made.
This version uses radio buttons instead of checkboxes so that only one section of the accordion can be open at any given time.
A Pen by Alex Bergin on CodePen.
<h1>CSS + HTML only Accordion Element</h1> | |
<ul> | |
<li> | |
<input name="accordion" type="radio" checked> | |
<i></i> | |
<h2>Languages Used</h2> | |
<p>This page was written in HTML and CSS. The CSS was compiled from SASS. I used Normalize as my CSS reset and -prefix-free to save myself some headaches. I haven't quite gotten the hang of Slim for compiling into HTML, but someday I'll use it since its syntax compliments that of SASS. Regardless, this could all be done in plain HTML and CSS.</p> | |
</li> | |
<li> | |
<input name="accordion" type="radio"> | |
<i></i> | |
<h2>How it Works</h2> | |
<p>Using the sibling and checked selectors, we can determine the styling of sibling elements based on the checked state of the checkbox input element. One use, as demonstrated here, is an entirely CSS and HTML accordion element. Media queries are used to make the element responsive to different screen sizes.</p> | |
</li> | |
<li> | |
<input name="accordion" type="radio"> | |
<i></i> | |
<h2>Points of Interest</h2> | |
<p>By making the open state default for when :checked isn't detected, we can make this system accessable for browsers that don't recognize :checked. The fallback is simply an open accordion. The accordion can be manipulated with Javascript (if needed) by changing the "checked" property of the input element.</p> | |
</li> | |
</ul> |
$white: rgba(254,255,250,1) | |
$grey: rgba(220,231,235,1) | |
$red: rgba(255,104,115,1) | |
$black: rgba(48,69,92,0.8) | |
$sans: 'Titillium Web', sans-serif | |
.transition | |
transition: all 0.25s ease-in-out | |
.flipIn | |
animation: flipdown 0.5s ease both | |
.no-select | |
-webkit-tap-highlight-color: rgba(0,0,0,0) | |
-webkit-touch-callout: none | |
-webkit-user-select: none | |
-khtml-user-select: none | |
-moz-user-select: none | |
-ms-user-select: none | |
user-select: none | |
html | |
width: 100% | |
height: 100% | |
perspective: 900 | |
overflow-y: scroll | |
background-color: $grey | |
font-family: $sans | |
color: $black | |
body | |
min-height: 0 | |
display: inline-block | |
position: relative | |
left: 50% | |
margin: 90px 0 | |
transform: translate( -50% , 0 ) | |
box-shadow: 0 10px 0 0 $red inset | |
background-color: $white | |
max-width: 450px | |
padding: 30px | |
@media ( max-width:550px ) | |
box-sizing: border-box | |
transform: translate( 0 , 0 ) | |
max-width: 100% | |
min-height: 100% | |
margin: 0 | |
left: 0 | |
h1 , h2 | |
color: $red | |
h1 | |
text-transform: uppercase | |
font-size: 36px | |
line-height: 42px | |
letter-spacing: 3px | |
font-weight: 100 | |
@extend .flipIn | |
h2 | |
font-size: 26px | |
line-height: 34px | |
font-weight: 300 | |
letter-spacing: 1px | |
display: block | |
background-color: $white | |
margin: 0 | |
cursor: pointer | |
@extend .no-select | |
p | |
color: $black | |
font-size: 17px | |
line-height: 26px | |
letter-spacing: 1px | |
position: relative | |
overflow: hidden | |
max-height: 0 | |
@extend .transition | |
opacity: 0 | |
transform: translate( 0 , 50% ) | |
margin-top: 0 | |
z-index: 2 | |
ul | |
list-style: none | |
perspective: 900 | |
padding: 0 | |
margin: 0 | |
li | |
position: relative | |
padding: 0 | |
margin: 0 | |
padding-bottom: 4px | |
padding-top: 18px | |
border-top: 1px dotted $grey | |
@extend .flipIn | |
&:nth-of-type(1) | |
animation-delay: 0.5s | |
&:nth-of-type(2) | |
animation-delay: 0.75s | |
&:nth-of-type(3) | |
animation-delay: 1.0s | |
&:last-of-type | |
padding-bottom: 0 | |
i | |
position: absolute | |
transform: translate( -6px , 0 ) | |
margin-top: 16px | |
right: 0 | |
&:before , &:after | |
content: "" | |
@extend .transition | |
position: absolute | |
background-color: $red | |
width: 3px | |
height: 9px | |
&:before | |
transform: translate( 2px , 0 ) rotate( 45deg ) | |
&:after | |
transform: translate( -2px , 0 ) rotate( -45deg ) | |
input[type=radio] | |
position: absolute | |
cursor: pointer | |
width: 100% | |
height: 100% | |
z-index: 1 | |
opacity: 0 | |
&:checked | |
&~p | |
margin-top: 14px | |
max-height: 800px | |
opacity: 1 | |
transform: translate( 0 , 0 ) | |
&~i | |
&:before | |
transform: translate( -2px , 0 ) rotate( 45deg ) | |
&:after | |
transform: translate( 2px , 0 ) rotate( -45deg ) | |
@keyframes flipdown | |
0% | |
opacity: 0 | |
transform-origin: top center | |
transform: rotateX(-90deg) | |
5% | |
opacity: 1 | |
80% | |
transform: rotateX(8deg) | |
83% | |
transform: rotateX(6deg) | |
92% | |
transform: rotateX(-3deg) | |
100% | |
transform-origin: top center | |
transform: rotateX(0deg) |
<link href="http://fonts.googleapis.com/css?family=Titillium+Web:300,700,300italic" rel="stylesheet" /> |