• HTML
• CSS
• JS

HTML

<div class="navigation">
    <div class="menuToggle"></div>
    <div class="menu">
        <ul>
            <li style="--i:0.1s;"><a href="#"><ion-icon name="camera-outline"></ion-icon></a></li>
            <li style="--i:0.1s;"><a href="#"><ion-icon name="settings-outline"></ion-icon></a></li>
            <li style="--i:0.1s;"><a href="#"><ion-icon name="trash-outline"></ion-icon></a></li>
        </ul>
    </div>
</div>

<script type="module" src="https://unpkg.com/ionicons@5.5.2/dist/ionicons/ionicons.esm.js"></script>
<script nomodule src="https://unpkg.com/ionicons@5.5.2/dist/ionicons/ionicons.js"></script>

CSS

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800;900&display=swap');
*
{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:'Poppins',sans-serif;
}
body
{
    display:flex;
    justify-content:center;
    align-items:center;
    min-height:100vh;
    background:linear-gradient(45deg,#ff216d,#2196f3);
}
.navigation
{
    position:relative;
    display:flex;
    justify-content:center;
    align-items:center;
}
.menuToggle
{
    position:relative;
    width:70px;
    height:70px;
    background:#fff;
    border-radius:70px;
    cursor:pointer;
    display:flex;
    justify-content:center;
    align-items:center;
    box-shadow:0 15px 25px rgba(0,0,0,0.15);
}
.menuToggle::before
{
    content:'+';
    position:absolute;
    font-size:3em;
    font-weight:200;
    color:#ff216d;
    transition:1.5s;
}
.menuToggle.active::before
{
    transform:rotate(225deg);
}
.menu
{
    position:absolute;
    width:30px;
    height:30px;
    background:#fff;
    border-radius:70px;
    z-index:-1;
    transition:transform 0.5s,width 0.5s,height 0.5s;
    transition-delay:1s,0.5s,0.5s;
}
.menuToggle.active ~ .menu
{
    width:240px;
    height:70px;
    z-index:1;
    transform:translateY(-100px);
    transition-delay:0s,0.5s,0.5s;
    box-shadow:0 15px 25px rgba(0,0,0,0.1);
}
.menu::before
{
    content:'';
    position:absolute;
    width:16px;
    height:16px;
    background:#fff;
    left:calc(50% - 8px);
    bottom:4px;
    transform:rotate(45deg);
    border-radius:2px;
    transition:0.5s;
}
.menuToggle.active ~ .menu::before
{
    transition-delay:0.5s;
    bottom:-6px;
}
.menu ul
{
    position:relative;
    display:flex;
    justify-content:center;
    align-items:center;
    height:80px;
    gap:40px
}
.menu ul li
{
    list-style:none;
    cursor:pointer;
    opacity:0;
    visibility:hidden;
    transition:0.25s;
    transform:translateY(-30px);
    transition:0.25s;
    transition-delay:calc(0s + var(--i));
}
.menuToggle.active ~ .menu ul li 
{
    opacity:1;
    visibility:visible;
    transform:translateY(0px);
    transition-delay:calc(0.75s + var(--i));
}
.menu ul li a
{
    display:block;
    font-size:2em;
    text-decoration:none;
    color:#555;
}
.menu ul li:hover a
{
    color:#ff216d;
}

JS

let menuToggle = document.querySelector('.menuToggle');

menuToggle.onclick = function(){
    menuToggle.classList.toggle('active')
}

/*
    All the credist: https://www.youtube.com/watch?v=BsE6k7siWKE
*/