Animated footer
— Updated
This animated footer slides-in from the bottom of the page. The effect is created by using the CSS transform property. The result is a performant animation that does not cause layout shifts.
<div id="banner" class="banner">
<button id="close-button" class="close-button" aria-label="close" tabindex="0">✕</button>
<div>
<h1>Notice</h1>
Lorem ipsum dolor sit amet.
</div>
</div>document.getElementById("close-button").onclick = () => {
document.getElementById("banner").style.display = "none";
}body {
overscroll-behavior-y: none;
font-family: system-ui;
padding: 2em;
background-color: #f4f4f4;
}
.banner {
animation: slideIn 1000ms ease-in-out;
position: fixed;
left: 0;
bottom: 0;
right: 0;
padding: 1rem;
background-color: white;
box-shadow: 0 0 10px rgba(0,0,0,0.2);
}
@keyframes slideIn {
from {
transform: translateY(100vh);
}
to {
transform: translateY(0vh);
}
}
.close-button {
background: transparent;
border: none;
padding: 1em;
font-size: 1em;
position: absolute;
right: 0;
top: 0;
cursor: pointer;
}