Pure CSS responsive hotspots with pule effect. Pulse effect made with CSS animation and transform: scale().

CSS Hotspots with Pulse Effect

Pure CSS responsive hotspots with pulse effect. Pulse effect made with CSS animation and transform: scale().

Photo by Julian O’hayon on Unsplash.
Compatible browsers: Chrome, Edge, Firefox, Opera, Safari.


<section class="hotspots--wrapper">
  <img src="pure-css-responsive-hotspots.jpg" alt="black Macbook near black iPhone 7 Plus and black Apple Watch" class="hotspots--figure">
  <a class="hotspot hotspot--iphone" href="#">
    <span class="hotspot--title">iPhone 7</span>
    <span class="hotspot--cta"></span>
  </a>
  <a class="hotspot hotspot--macbook" href="#">
    <span class="hotspot--title">MacBook</span>
    <span class="hotspot--cta"></span>
  </a>
  <a class="hotspot hotspot--watch" href="#">
    <span class="hotspot--title hotspot--title__right">Apple Watch</span>
    <span class="hotspot--cta"></span>
  </a>
</section>

@import url('https://fonts.googleapis.com/css?family=Maven+Pro:500&display=swap');

body {
  margin: 0;
  padding: 0;
  display: flex;
  min-height: 100vh;
}

.hotspots--wrapper {
  position: relative;
  margin: auto;
  max-width: 960px;
  font-family: 'Maven Pro', sans-srif;
  font-weight: 500;
}

.hotspots--figure {
  max-width: 100%;
}

.hotspot {
  position: absolute;
  display: block;
}

.hotspot--title {
  display: inline-block;
  padding-right: 10px;
  color: #ff0000;
  text-transform: uppercase;
  line-height: 50px;
  font-size: 12px;
  letter-spacing: 1px;
  transition: all cubic-bezier(.8,0,.2,1) .4s;
}

.hotspot--title__right {
  float: right;
  padding-right: 0;
  padding-left: 10px;
}

.hotspot--cta {
  position: relative;
  float: right;
  display: inline-block;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: #ff0000;
  transition: all cubic-bezier(.8,0,.2,1) .4s;
}

.hotspot--cta::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  right: 0;
  margin: auto;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #fff;
  z-index: 2;
  transition: opacity .6s;
  animation: pulse 1.5s cubic-bezier(.8,0,.2,1) 0s infinite;
}

.hotspot:hover .hotspot--cta {
  transform: scale(.6);
}

.hotspot:hover .hotspot--cta:after {
  opacity: 0;
}

@keyframes pulse {
  0% {transform: scale(0.4);}
  33% {transform: scale(1);}
  66% {transform: scale(0.4);}
  100% {transform: scale(0.4);}
}

.hotspot--iphone {
  top: 62%;
  right: 68%;
}

.hotspot--macbook {
  top: 22%;
  right: 48%;
}

.hotspot--watch {
  top: 72%;
  left: 45%;
}

@media screen and (max-width: 640px) {
  .hotspot--title {
    line-height: 40px;
    font-size: 10px;
  }
  .hotspot--cta {
    width: 40px;
    height: 40px;
  }
}

@media screen and (max-width: 420px) {
  .hotspot--title {
    line-height: 30px;
    font-size: 9px;
  }
  .hotspot--cta {
    width: 30px;
    height: 30px;
  }
}

@media screen and (max-width: 320px) {
  .hotspot--title {
    display: none;
  }
  
  .hotspot--cta {
    width: 20px;
    height: 20px;
  }
  .hotspot--cta::after {
    width: 5px;
    height: 5px;
  }
}
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