CSS Checkbox example - html

Question

I want to make this example to work. I need it on my project but i don't understand CSS and can't seem to figure out why this isn't working. Any help would be appreciated.
Why is this example working on codepen : codepen link
But is not working in jsfiddle or my website : Jsfiddle link
Code(CSS):
.inputGroup {
background-color: #fff;
display: block;
margin: 10px 0;
position: relative;
label {
padding: 12px 30px;
width: 100%;
display: block;
text-align: left;
color: #3C454C;
cursor: pointer;
position: relative;
z-index: 2;
transition: color 200ms ease-in;
overflow: hidden;
&:before {
width: 10px;
height: 10px;
border-radius: 50%;
content: '';
background-color: #5562eb;
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%) scale3d(1, 1, 1);
transition: all 300ms cubic-bezier(0.4, 0.0, 0.2, 1);
opacity: 0;
z-index: -1;
}
&:after {
width: 32px;
height: 32px;
content: '';
border: 2px solid #D1D7DC;
background-color: #fff;
background-image: url("data:image/svg+xml,%3Csvg width='32' height='32' viewBox='0 0 32 32' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M5.414 11L4 12.414l5.414 5.414L20.828 6.414 19.414 5l-10 10z' fill='%23fff' fill-rule='nonzero'/%3E%3C/svg%3E ");
background-repeat: no-repeat;
background-position: 2px 3px;
border-radius: 50%;
z-index: 2;
position: absolute;
right: 30px;
top: 50%;
transform: translateY(-50%);
cursor: pointer;
transition: all 200ms ease-in;
}
}
input:checked ~ label {
color: #fff;
&:before {
transform: translate(-50%, -50%) scale3d(56, 56, 1);
opacity: 1;
}
&:after {
background-color: #54E0C7;
border-color: #54E0C7;
}
}
input {
width: 32px;
height: 32px;
order: 1;
z-index: 2;
position: absolute;
right: 30px;
top: 50%;
transform: translateY(-50%);
cursor: pointer;
visibility: hidden;
}
}
// codepen formatting
.form {
padding: 0 16px;
max-width: 550px;
margin: 50px auto;
font-size: 18px;
font-weight: 600;
line-height: 36px;
}
body {
background-color: #D1D7DC;
font-family: 'Fira Sans', sans-serif;
}
*,
*::before,
*::after {
box-sizing: inherit;
}
html {
box-sizing: border-box;
}
code {
background-color: #9AA3AC;
padding: 0 8px;
}
Here is the Html code :
<form class="form">
<h2>Checkboxes</h2>
<div class="inputGroup">
<input id="option1" name="option1" type="checkbox"/>
<label for="option1">Option One</label>
</div>
<div class="inputGroup">
<input id="option2" name="option2" type="checkbox"/>
<label for="option2">Option Two</label>
</div>
<h2>Radio Buttons</h2>
<div class="inputGroup">
<input id="radio1" name="radio" type="radio"/>
<label for="radio1">Yes</label>
</div>
<div class="inputGroup">
<input id="radio2" name="radio" type="radio"/>
<label for="radio2">No</label>
</div>
</form>

Answer 1

Because you are not using compiled css.
See below snippet
.inputGroup {
background-color: #fff;
display: block;
margin: 10px 0;
position: relative;
}
.inputGroup label {
padding: 12px 30px;
width: 100%;
display: block;
text-align: left;
color: #3C454C;
cursor: pointer;
position: relative;
z-index: 2;
transition: color 200ms ease-in;
overflow: hidden;
}
.inputGroup label:before {
width: 10px;
height: 10px;
border-radius: 50%;
content: '';
background-color: #5562eb;
position: absolute;
left: 50%;
top: 50%;
-webkit-transform: translate(-50%, -50%) scale3d(1, 1, 1);
transform: translate(-50%, -50%) scale3d(1, 1, 1);
transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
opacity: 0;
z-index: -1;
}
.inputGroup label:after {
width: 32px;
height: 32px;
content: '';
border: 2px solid #D1D7DC;
background-color: #fff;
background-image: url("data:image/svg+xml,%3Csvg width='32' height='32' viewBox='0 0 32 32' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M5.414 11L4 12.414l5.414 5.414L20.828 6.414 19.414 5l-10 10z' fill='%23fff' fill-rule='nonzero'/%3E%3C/svg%3E ");
background-repeat: no-repeat;
background-position: 2px 3px;
border-radius: 50%;
z-index: 2;
position: absolute;
right: 30px;
top: 50%;
-webkit-transform: translateY(-50%);
transform: translateY(-50%);
cursor: pointer;
transition: all 200ms ease-in;
}
.inputGroup input:checked ~ label {
color: #fff;
}
.inputGroup input:checked ~ label:before {
-webkit-transform: translate(-50%, -50%) scale3d(56, 56, 1);
transform: translate(-50%, -50%) scale3d(56, 56, 1);
opacity: 1;
}
.inputGroup input:checked ~ label:after {
background-color: #54E0C7;
border-color: #54E0C7;
}
.inputGroup input {
width: 32px;
height: 32px;
order: 1;
z-index: 2;
position: absolute;
right: 30px;
top: 50%;
-webkit-transform: translateY(-50%);
transform: translateY(-50%);
cursor: pointer;
visibility: hidden;
}
.form {
padding: 0 16px;
max-width: 550px;
margin: 50px auto;
font-size: 18px;
font-weight: 600;
line-height: 36px;
}
body {
background-color: #D1D7DC;
font-family: 'Fira Sans', sans-serif;
}
*,
*::before,
*::after {
box-sizing: inherit;
}
html {
box-sizing: border-box;
}
code {
background-color: #9AA3AC;
padding: 0 8px;
}
<form class="form">
<h2>Checkboxes</h2>
<div class="inputGroup">
<input id="option1" name="option1" type="checkbox"/>
<label for="option1">Option One</label>
</div>
<div class="inputGroup">
<input id="option2" name="option2" type="checkbox"/>
<label for="option2">Option Two</label>
</div>
<h2>Radio Buttons</h2>
<div class="inputGroup">
<input id="radio1" name="radio" type="radio"/>
<label for="radio1">Yes</label>
</div>
<div class="inputGroup">
<input id="radio2" name="radio" type="radio"/>
<label for="radio2">No</label>
</div>
</form>
<link href="https://fonts.googleapis.com/css?family=Fira+Sans" rel="stylesheet">