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HTML

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

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About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

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JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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HTML 

              
                <!-- Link to Google Material Icons font -->
<link
    href="https://fonts.googleapis.com/icon?family=Material+Icons"
    rel="stylesheet"
/>

<!-- Main container for the button group -->
<div class="container">
    <!-- Button group with animated menu -->
    <div class="btn-group">
        <!-- Central span for creating the '+' symbol -->
        <span></span>
        <!-- Home button -->
        <button class="btn"><i class="material-icons md-48">home</i></button>
        <!-- Settings button -->
        <button class="btn"><i class="material-icons">settings</i></button>
        <!-- Logout button -->
        <button class="btn"><i class="material-icons">logout</i></button>
        <!-- Help button -->
        <button class="btn"><i class="material-icons">help</i></button>
    </div>
</div>
!

CSS 

              
                /* Reset default margin */
* {
    margin: 0;
}

/* Set background color for the body */
body {
    background: #fff;
}

/* Style for the main container */
.container {
    height: 200px;
    width: 300px;
    position: absolute;
    top: 50%;
    left: 55%;
    transform: translate(-50%, -50%);
}

/* Style for the button group */
.btn-group {
    height: 160px;
    width: 160px;
    border-radius: 160px;
    transform: scale(0.5);
    font-family: calibri;
    position: absolute;
    cursor: pointer;
    transition: all 0.5s cubic-bezier(0.83, -0.24, 0.24, 1.31);
    background-color: #fff;
    vertical-align: middle;
}

/* Style for individual buttons */
.btn {
    height: 80px;
    width: 80px;
    float: left;
    font-size: 40px;
    line-height: 80px;
    border: none;
    background-color: #2196F3;
    color: #2196F3;
    transition: all 0.5s cubic-bezier(0.83, -0.24, 0.24, 1.31),
        background-color 0.25s ease-in-out, box-shadow 0.25s ease-in-out;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Hover effect for buttons */
.btn:hover {
    background-color: #64B5F6;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.15);
}

/* Style for the central span ('+' symbol) */
.btn-group > span {
    height: 60px;
    width: 60px;
    margin: 50px 50px;
    position: absolute;
}

/* Create the '+' symbol using pseudo-elements */
.btn-group > span::before,
.btn-group > span::after {
    content: "";
    background-color: #fff;
    position: absolute;
    border-radius: 10px;
}

.btn-group > span::before {
    width: 10px;
    height: 100%;
    margin: 0 25px;
}

.btn-group > span::after {
    width: 100%;
    height: 10px;
    margin: 25px 0;
}

/* Hover effect for the button group */
.btn-group:hover {
    transform: scale(0.85) rotate(45deg);
    cursor: default;
}

/* Hide the '+' symbol on hover */
.btn-group:hover > span {
    opacity: 0;
}

/* Rotate buttons and change color on hover */
.btn-group:hover > .btn {
    border-radius: 100%;
    color: #fff;
    transform: rotate(-45deg);
}

/* Set border-radius for each button to create a circular shape when combined */
.btn:nth-child(2) {
    border-radius: 80px 0 0 0;
}

.btn:nth-child(3) {
    border-radius: 0 80px 0 0;
}

.btn:nth-child(4) {
    border-radius: 0 0 0 80px;
}

.btn:nth-child(5) {
    border-radius: 0 0 80px 0;
}

/* Adjust margins for buttons on hover to create space between them */
.btn-group:hover > .btn:nth-child(2) {
    margin: -5px 5px 5px -5px;
}

.btn-group:hover > .btn:nth-child(3) {
    margin: -5px -5px 5px 5px;
}

.btn-group:hover > .btn:nth-child(4) {
    margin: 5px 5px -5px -5px;
}

.btn-group:hover > .btn:nth-child(5) {
    margin: 5px -5px -5px 5px;
}

/* Set font size for Material Icons */
.material-icons {
    font-size: 36px !important;
}

  @media screen and (max-width: 768px) {
   .container {
    top: 50%;
    left: 65%;
    
}
        }

  @media screen and (max-width: 380px) {
   .container {
    top: 50%;
    left: 70%;
    
}
        }
!

JS
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