Hello guys,

It's my first post and in this post I am showing you, how can we customize checkbox and radio input with the help of css. Yes, now we can customize form elements with css. It's not complicated but little tricky.

So lets start with HTML. It's easy because trick is not here. :(

But it's important too. ^ ^

HTML Markup
Make sure: your input's id and it's next label's for attribute should be equal and unique.

<div class="mainContainer">
    <div class="checkboxContainer">
        <input type="checkbox" id="check1" name="options" />
        <label for="check1">Option 1</label>

        <input type="checkbox" id="check2" name="options" />
        <label for="check2">Option 2</label>

        <input type="checkbox" id="check3" name="options" />
        <label for="check3">Option 3</label>

        <input type="checkbox" id="check4" name="options" />
        <label for="check4">Option 4</label>
    </div>

    <div class="radioContainer">
        <input type="radio" id="radio1" name="type" />
        <label for="radio1">Type 1</label>

        <input type="radio" id="radio2" name="type" />
        <label for="radio2">Type 2</label>

        <input type="radio" id="radio3" name="type" />
        <label for="radio3">Type 3</label>

        <input type="radio" id="radio4" name="type" />
        <label for="radio4">Type 4</label>
    </div>
</div>

CSS
Real trick is here friends. To understand this you have to know about Advance CSS selectors. But it's not necessary because your code is here, just copy and paste it into your .html.
:)

body {
    font: normal 12px/1 Arial,helvetica,sans-serif;
    color: #333;
    background: #eee;
}

.mainContainer {
    width: 360px;
    height: 104px;
    position: absolute;
    margin-left: -180px;
    left: 50%;
    top: 20%;
    background: #fff;
    padding: 30px 30px 0;
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    border-radius: 5px;
    -webkit-box-shadow: 0 1px 1px #ddd;
    -moz-box-shadow: 0 1px 1px #ddd;
    box-shadow: 0 1px 1px #ddd;
}

.checkboxContainer, .radioContainer {
    margin-bottom: 30px;
}

/* RADIO */
input[type='radio'] {
    display: none;
}

input[type='radio'] + label {
    margin-right: 20px;
    position: relative;
    cursor: pointer;
}

input[type='radio'] + label:before {
    content: '';
    cursor: pointer;
    display: inline-block;
    position: relative;
    width: 16px;
    height: 16px;
    -webkit-border-radius: 10px;
    -moz-border-radius: 10px;
    border-radius: 10px;
    background: #eee;
    margin-right: 5px;
    top: 4px;
}

input[type='radio']:checked + label:before {
    background-color: #aaa; 
}

input[type='radio']:checked + label:after {
    -webkit-border-radius: 10px;
    -moz-border-radius: 10px;
    border-radius: 10px;
    position: absolute;
    left: 4px;
    top: 4px;
    display: inline-block;
    width: 8px;
    height: 8px;
    background: #fff;
    content: '';
}

input[type='checkbox'] {
    display: none;
}

input[type='checkbox'] + label {
    position: relative;
    margin-right: 20px;
    cursor: pointer;
}

input[type='checkbox'] + label:before {
    content: '';
    display: inline-block;
    cursor: pointer;
    width: 16px;
    height: 16px;
    background: #eee;
    position: relative;
    top: 4px;
    margin-right: 5px;
}

input[type='checkbox']:checked + label:before {
    text-shadow: 1px 1px 1px rgba(0, 0, 0, .2);
    background-color: #aaa;
}

input[type='checkbox']:checked + label:after {
    content: '';
    width: 10px;
    height: 10px;
    display: inline-block;
    background: #fff;
    position: absolute;
    left: 3px;
    top: 3px;
}