Echo Ping Text Effect
A copy of the word swells out from the text and fades, like a sonar ping or a live indicator. It is the same keyframe as Tailwind's animate-ping, applied to a word instead of a dot.
Also known as: sonar ping text, text echo animation, radiating text.
LIVE
HTML
<div class="txt-echo-ping-text">LIVE<span class="txt-echo-ping-text-echo" aria-hidden="true">LIVE</span></div>
CSS
.txt-echo-ping-text {
--c: var(--txt-color, #3b82f6);
font-size: var(--txt-size, 32px);
font-family: system-ui, sans-serif;
font-weight: 700;
line-height: 1.2;
position: relative;
display: inline-block;
color: var(--c);
letter-spacing: 0.06em;}
.txt-echo-ping-text-echo {
position: absolute;
inset: 0;
color: color-mix(in srgb, var(--c) 50%, transparent);
animation: txt-echo-ping-text-ping 1s cubic-bezier(0, 0, 0.2, 1) infinite;
}
@keyframes txt-echo-ping-text-ping {
75%, 100% { transform: scale(2); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
.txt-echo-ping-text, .txt-echo-ping-text *, .txt-echo-ping-text::before, .txt-echo-ping-text::after, .txt-echo-ping-text *::before, .txt-echo-ping-text *::after {
animation-duration: 0.01ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.01ms !important;
}
}Tailwind CSS version
The same effect using Tailwind utility classes. No custom CSS or config needed.
<div class="relative inline-block text-4xl font-bold tracking-wider text-blue-500"> LIVE <span class="absolute inset-0 animate-ping text-blue-500/50" aria-hidden="true">LIVE</span> </div>
Customizing this snippet
- Color: set
--txt-coloron the element or a parent. Currently previewing#3b82f6. - Font size: set
--txt-size. Every other dimension is inem, so the whole thing scales together. Currently previewing40px. - Speed: change the duration on the
transitionoranimationshorthand. Staggered delays are relative, so they keep their rhythm. - Reduced motion: the rule at the end of the CSS turns the motion off for people who asked their OS for less of it. Keep it.