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Innocent Coder
Innocent Coder

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Animated Tab Bar Using Html Css Js

Motion Design Interaction for a bottom toolbar using the cutout that came in Material Design 2.0 for the call to action buttons (or FAB). This is mixture of both the bottom toolbar and the bottom tab bar.

Download Source Code:- https://bit.ly/3xtBqew

HTML Code

<menu class="menu">

    <button class="menu__item active" style="--bgColorItem: #ff8c00;" >
      <svg class="icon" viewBox="0 0 24 24">
        <path d="M3.8,6.6h16.4"/>
        <path d="M20.2,12.1H3.8"/>
        <path d="M3.8,17.5h16.4"/>
      </svg>
    </button>

    <button class="menu__item" style="--bgColorItem: #f54888;">
      <svg class="icon" viewBox="0 0 24 24">
        <path  d="M6.7,4.8h10.7c0.3,0,0.6,0.2,0.7,0.5l2.8,7.3c0,0.1,0,0.2,0,0.3v5.6c0,0.4-0.4,0.8-0.8,0.8H3.8
        C3.4,19.3,3,19,3,18.5v-5.6c0-0.1,0-0.2,0.1-0.3L6,5.3C6.1,5,6.4,4.8,6.7,4.8z"/>
        <path  d="M3.4,12.9H8l1.6,2.8h4.9l1.5-2.8h4.6"/>
      </svg>
    </button>

    <button class="menu__item" style="--bgColorItem: #4343f5;" >
      <svg class="icon" viewBox="0 0 24 24">
      <path  d="M3.4,11.9l8.8,4.4l8.4-4.4"/>
      <path  d="M3.4,16.2l8.8,4.5l8.4-4.5"/>
      <path  d="M3.7,7.8l8.6-4.5l8,4.5l-8,4.3L3.7,7.8z"/>
    </button>

    <button class="menu__item" style="--bgColorItem: #e0b115;" > 
      <svg class="icon" viewBox="0 0 24 24" >
        <path  d="M5.1,3.9h13.9c0.6,0,1.2,0.5,1.2,1.2v13.9c0,0.6-0.5,1.2-1.2,1.2H5.1c-0.6,0-1.2-0.5-1.2-1.2V5.1
          C3.9,4.4,4.4,3.9,5.1,3.9z"/>
        <path  d="M4.2,9.3h15.6"/>
        <path  d="M9.1,9.5v10.3"/>
    </button>

    <button class="menu__item" style="--bgColorItem:#65ddb7;">
      <svg class="icon" viewBox="0 0 24 24" >
        <path  d="M5.1,3.9h13.9c0.6,0,1.2,0.5,1.2,1.2v13.9c0,0.6-0.5,1.2-1.2,1.2H5.1c-0.6,0-1.2-0.5-1.2-1.2V5.1
          C3.9,4.4,4.4,3.9,5.1,3.9z"/>
        <path  d="M5.5,20l9.9-9.9l4.7,4.7"/>
        <path  d="M10.4,8.8c0,0.9-0.7,1.6-1.6,1.6c-0.9,0-1.6-0.7-1.6-1.6C7.3,8,8,7.3,8.9,7.3C9.7,7.3,10.4,8,10.4,8.8z"/>
      </svg>
    </button>

    <div class="menu__border"></div>

  </menu>

  <div class="svg-container">
    <svg viewBox="0 0 202.9 45.5" >
      <clipPath id="menu" clipPathUnits="objectBoundingBox" transform="scale(0.0049285362247413 0.021978021978022)">
        <path  d="M6.7,45.5c5.7,0.1,14.1-0.4,23.3-4c5.7-2.3,9.9-5,18.1-10.5c10.7-7.1,11.8-9.2,20.6-14.3c5-2.9,9.2-5.2,15.2-7
          c7.1-2.1,13.3-2.3,17.6-2.1c4.2-0.2,10.5,0.1,17.6,2.1c6.1,1.8,10.2,4.1,15.2,7c8.8,5,9.9,7.1,20.6,14.3c8.3,5.5,12.4,8.2,18.1,10.5
          c9.2,3.6,17.6,4.2,23.3,4H6.7z"/>
      </clipPath>
    </svg>
  </div>
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CSS Code

html {

    box-sizing: border-box;
    --bgColorMenu : #1d1d27;
    --duration: .7s;    

}

html *,
html *::before,
html *::after {

    box-sizing: inherit;

}

body{

    margin: 0;
    display: flex;
    height: 100vh;
    overflow: hidden;
    align-items: center;
    justify-content: center;
    background-color: #ffb457;
    -webkit-tap-highlight-color: transparent;
    transition: background-color var(--duration);

}

.menu{

    margin: 0;
    display: flex;
    /* Works well with 100% width  */
    width: 32.05em;
    font-size: 1.5em;
    padding: 0 2.85em;
    position: relative;
    align-items: center;
    justify-content: center;
    background-color: var(--bgColorMenu);

}

.menu__item{

    all: unset;
    flex-grow: 1;
    z-index: 100;
    display: flex;
    cursor: pointer;
    position: relative;
    border-radius: 50%;
    align-items: center;
    will-change: transform;
    justify-content: center;
    padding: 0.55em 0 0.85em;
    transition: transform var(--timeOut , var(--duration));

}

.menu__item::before{

    content: "";
    z-index: -1;
    width: 4.2em;
    height: 4.2em;
    border-radius: 50%;
    position: absolute;
    transform: scale(0);
    transition: background-color var(--duration), transform var(--duration);

}


.menu__item.active {

    transform: translate3d(0, -.8em , 0);

}

.menu__item.active::before{

    transform: scale(1);
    background-color: var(--bgColorItem);

}

.icon{

    width: 2.6em;
    height: 2.6em;
    stroke: white;
    fill: transparent;
    stroke-width: 1pt;
    stroke-miterlimit: 10;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 400;

}

.menu__item.active .icon {

    animation: strok 1.5s reverse;

}

@keyframes strok {

    100% {

        stroke-dashoffset: 400;

    }

}

.menu__border{

    left: 0;
    bottom: 99%;
    width: 10.9em;
    height: 2.4em;
    position: absolute;
    clip-path: url(#menu);
    will-change: transform;
    background-color: var(--bgColorMenu);
    transition: transform var(--timeOut , var(--duration));

}

.svg-container {

    width: 0;
    height: 0;
}


@media screen and (max-width: 50em) {
    .menu{
        font-size: .8em;
    }
}
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JS Code



"use strict"; 

const body = document.body;
const bgColorsBody = ["#ffb457", "#ff96bd", "#9999fb", "#ffe797", "#cffff1"];
const menu = body.querySelector(".menu");
const menuItems = menu.querySelectorAll(".menu__item");
const menuBorder = menu.querySelector(".menu__border");
let activeItem = menu.querySelector(".active");

function clickItem(item, index) {

    menu.style.removeProperty("--timeOut");

    if (activeItem == item) return;

    if (activeItem) {
        activeItem.classList.remove("active");
    }


    item.classList.add("active");
    body.style.backgroundColor = bgColorsBody[index];
    activeItem = item;
    offsetMenuBorder(activeItem, menuBorder);


}

function offsetMenuBorder(element, menuBorder) {

    const offsetActiveItem = element.getBoundingClientRect();
    const left = Math.floor(offsetActiveItem.left - menu.offsetLeft - (menuBorder.offsetWidth  - offsetActiveItem.width) / 2) +  "px";
    menuBorder.style.transform = `translate3d(${left}, 0 , 0)`;

}

offsetMenuBorder(activeItem, menuBorder);

menuItems.forEach((item, index) => {

    item.addEventListener("click", () => clickItem(item, index));

})

window.addEventListener("resize", () => {
    offsetMenuBorder(activeItem, menuBorder);
    menu.style.setProperty("--timeOut", "none");
});
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