css animated tooltip

by polaszk

HTML

<span title="title">text</span>

<span data-info="tooltip">text</span>

CSS

span {
  display: inline-block;
  margin: 30px 20px 20px;
  position: relative;
}

[data-info] {
  position: relative;
}

[data-info]:after {
  font-family: 'Source Sans Pro', sans-serif;
  display: none;
  opacity: 0;
  text-align: center;
  padding: 5px 10px;
  border-radius: 1px;
  box-shadow: 1px 1px 2px 0 rgba(0, 0, 0, .4);
  bottom: calc(100% + 3px);
  left: 50%;
  white-space: nowrap;
  background-color: #525252;
  border: 1px solid #4a4a4a;
  color: #fff;
  text-transform: none;
  font-size: 15px;
  line-height: 1;
  position: absolute;
}

[data-info]:hover::after {
  content: attr(data-info);
  display: block;
  opacity: 1;
  z-index: 99;
  transform: translate(-50%, -.5em);
  animation: tooltips 200ms ease-out forwards;
}

[data-info='']::before,
[data-info='']::after {
  display: none!important;
}

@-webkit-keyframes tooltips {
  to {
    -webkit-transform: translate(-50%, 0);
            transform: translate(-50%, 0);
  }
}

@keyframes tooltips {
  to {
    transform: translate(-50%, 0);
  }
}