In this article, we will create a tap bar that you can use in your mobile projects. Let's first look at what are we building:
Let's code...
HTML
<div class="container">
<div class="bar">
<div class="bar-item pre-active" onclick="changeActive(this)">
<div class="bar-fluid"></div>
<div class="drop"></div>
<i class="far fa-calendar-alt"></i>
</div>
<div class="bar-item" onclick="changeActive(this)">
<div class="bar-fluid"></div>
<div class="drop"></div>
<i class="far fa-sticky-note"></i>
</div>
<div class="bar-item" onclick="changeActive(this)">
<div class="bar-fluid"></div>
<div class="drop"></div>
<i class="far fa-bell"></i>
</div>
<div class="bar-item" onclick="changeActive(this)">
<div class="bar-fluid"></div>
<div class="drop"></div>
<i class="far fa-address-book"></i>
</div>
</div>
</div>
In the HTML code, the "bar" class is the container of our tap bar and "bar-item" class are the buttons that trigger the animations.
Now let's look at the CSS:
CSS
* {
margin: 0px;
padding: 0px;
box-sizing: border-box;
}
.container {
width: 100%;
height: 100vh;
display: flex;
align-items: center;
justify-content: center;
background-color: #fc5c65;
}
.bar {
padding: 0px 10px;
display: flex;
align-items: center;
background-color: #ffffff;
border-radius: 10px 10px 20px 20px;
box-shadow: 3px 3px 0px 0px rgb(235 59 90);
}
.bar .bar-item {
position: relative;
overflow: hidden;
padding: 20px 25px;
cursor: pointer;
}
.bar .bar-item i {
z-index: 1;
position: relative;
color: #a4b0be;
transition: all .3s ease-in-out;
}
.bar .bar-item.pre-active i {
color: #fc5c65;
}
.bar .bar-item.active i {
color: #fc5c65;
animation: colour 1s ease-in-out;
}
.bar .bar-item.active .bar-fluid {
position: absolute;
top: 0px;
left: 0px;
background-color: #fc5c65;
width: 100%;
height: 0px;
animation: fluid 1s ease-in-out;
}
.bar .bar-item.active .bar-fluid:before {
content: '';
position: absolute;
top: 0px;
left: -50%;
background-color: #ffffff;
width: 110%;
height: 400%;
border-radius: 50%;
}
.bar .bar-item.active .bar-fluid:after {
content: '';
position: absolute;
top: 0px;
right: -50%;
background-color: #ffffff;
width: 110%;
height: 400%;
border-radius: 50%;
}
.bar .bar-item.active .drop {
position: absolute;
top: -2.5px;
left: 30.5px;
background-color: #fc5c65;
width: 2.5px;
height: 2.5px;
border-radius: 50%;
animation: drop 1s ease-in-out;
}
@keyframes colour {
0% { color: #a4b0be; }
55% {
color: #a4b0be;
transform: scale(1);
}
60% {
color: #fc5c65;
transform: scale(1);
}
70% { transform: scale(1.1); }
80% { transform: scale(1); }
}
@keyframes fluid {
0% { height: 0px; }
30% { height: 10px; }
100% { height: 0px; }
}
@keyframes drop {
20% { top: -2.5px; }
50% { top: 21px; }
51% { top: -2.5px; }
}
JavaScript
const preactiveItem = document.querySelector('.pre-active')
const barItems = document.querySelectorAll('.bar-item')
function changeActive (newActive) {
preactiveItem.classList.remove('pre-active')
barItems.forEach(element => {
element.classList.remove('active')
})
newActive.classList.add('active')
}
Codepen is here:
Latest comments (47)
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WWOO
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Nyc work
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Dear Romaopedro,may I translate your all dev articles into Chinese?I would like to share it with more developers in China. I will give the original author and original source.
Yes, no problem!!