<!-- this script is provided by www.htmlbestcodes.com coded by: Kerixa Inc. -->
<style>
/* Base for label styling */
[type="checkbox"]:not(:checked),
[type="checkbox"]:checked {
    position: absolute;
    left: 0;
    opacity: 0.01;
}

[type="checkbox"]:not(:checked) + label,
[type="checkbox"]:checked + label {
    position: relative;
    padding-left: 2.3em;
    font-size: 1.05em;
    line-height: 1.7;
    cursor: pointer;
}

/* checkbox aspect */
[type="checkbox"]:not(:checked) + label:before,
[type="checkbox"]:checked + label:before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 1.4em;
    height: 1.4em;
    border: 1px solid #aaa;
    background: #FFF;
    border-radius: .2em;
    box-shadow: inset 0 1px 3px rgba(0,0,0, .1), 0 0 0 rgba(203, 34, 237, .2);
    -webkit-transition: all .275s;
    transition: all .275s;
}

/* checked mark aspect */
[type="checkbox"]:not(:checked) + label:after,
[type="checkbox"]:checked + label:after {
    content: '✕';
    position: absolute;
    top: .525em;
    left: .18em;
    font-size: 1.375em;
    color: #CB22ED;
    line-height: 0;
    -webkit-transition: all .2s;
    transition: all .2s;
}

/* checked mark aspect changes */
[type="checkbox"]:not(:checked) + label:after {
    opacity: 0;
    -webkit-transform: scale(0) rotate(45deg);
    transform: scale(0) rotate(45deg);
}

[type="checkbox"]:checked + label:after {
    opacity: 1;
    -webkit-transform: scale(1) rotate(0);
    transform: scale(1) rotate(0);
}

/* Disabled checkbox */
[type="checkbox"]:disabled:not(:checked) + label:before,
[type="checkbox"]:disabled:checked + label:before {
    box-shadow: none;
    border-color: #bbb;
    background-color: #e9e9e9;
}

[type="checkbox"]:disabled:checked + label:after {
    color: #777;
}

[type="checkbox"]:disabled + label {
    color: #aaa;
}

/* Accessibility */
[type="checkbox"]:checked:focus + label:before,
[type="checkbox"]:not(:checked):focus + label:before {
    box-shadow: inset 0 1px 3px rgba(0,0,0, .1), 0 0 0 6px rgba(203, 34, 237, .2);
}




/*
* Useless styles, just for demo design
*/
body {
    font-family: "Open Sans", "Segoe WP", "Segoe UI", Helvetica, Arial, sans-serif;
    text-align: center;
    color: #34495E;
    background: #FCFDFD;
}

a[href^="#"] {
    color: #34495E;
    text-decoration: underline;
}

h1 {
    margin-top: 1em;
}

h2 {
    margin-top: 0;
    margin-bottom: 2em;
    color: #CB22ED;
    font-weight: normal;
}

form {
    width: 120px;
    margin: 0 auto 55px;
    text-align: left;
}

div p:first-child {
    font-weight: bold;
    font-size: 1.2em;
}

p {
    color: #aaa;
}

p a {
    color: inherit;
}

p + p {
    margin-top: 3em;
}

form p {
    margin: 15px 0;
    color: #34495E;
}

a[href^="#"] {
    color: #1da1f2;
}

.btn.btn {
    display: inline-block;
    padding: 8px 24px;
    text-decoration: none;
    border-radius: 40px;
    background: #34495E;
    color: #F2F2F2;
    transition: all .4s;
}

.btn.btn:hover,
.btn.btn:focus {
    background: #000;
}
h1{
    font-size:18px;
}
</style>
<form action="#">
  <p>
    <input type="checkbox" id="test1" />
    <label for="test1">Red</label>
  </p>
  <p>
    <input type="checkbox" id="test2" checked="checked" />
    <label for="test2">Yellow</label>
  </p>
  <p>
    <input type="checkbox" id="test3" checked="checked" disabled="disabled" />
    <label for="test3">Green</label>
  </p>
    <p>
      <input type="checkbox" id="test4" disabled="disabled" />
      <label for="test4">Brown</label>
  </p>
</form><a target='_blank' href='www.htmlbestcodes.com' style='font-size: 8pt; text-decoration: none'>Html Best Codes</a>