hover — Всплывающие подсказки

Всплывающие подсказки на чистом css.

by akogch

HTML

<!-- Instead of using the 'title' attribute, simply use 'data-info' -->

<h1>Info on Hover!</h1>

<h2>Prettifying the 'title' attribute without Javascript!</h2>

<p>
  Lorem ipsum dolor sit amet, consectetur adipisicing elit.
  <dfn data-info="Lorem ipsum dolor sit amet, perspiciatis consectetur dolor."
    >Perspiciatis consectetur</dfn
  >
  Et delectus ut neque quod porro maiores est. Asperiores aspernatur rerum,
  explicabo ipsa consequatur, accusantium
  <dfn data-info="Lorem ipsum dolor sit amet.">provident optio</dfn> officia
  maxime libero sint esse.
</p>

<p>
  Lorem ipsum dolor sit amet, perspiciatis consectetur adipisicing elit. Dolor
  perspiciatis deserunt adipisci rem deserunt iste nulla tenetur.
  <dfn data-info="Lorem ipsum dolor sit amet, perspiciatis consectetur dolor."
    >Iste aliquid perspiciatis</dfn
  >
  dolorem laborum, nulla fugit accusamus possimus id tenetur officiis, impedit
  necessitatibus illo!
</p>

CSS

@import url(https://fonts.googleapis.com/css?family=Open+Sans:700,400,300);

::-moz-selection {
  background: rgba(0, 0, 0, 0.2);
}

::selection {
  background: rgba(0, 0, 0, 0.2);
}

/**** Skip to line 36 for the hover code ****/

body {
  background: linear-gradient(to right, #07a, #0aa);
  background-size: 100%;
  font-family: "Open Sans", sans-serif;
  font-size: 16px;
  line-height: 1.5em;
  margin: 80px 4em 0;
  color: #f5f5f5;
}

h1 {
  max-width: 49rem;
  font-size: 3.5em;
  line-height: 1em;
  font-weight: 700;
  margin: 0.25em auto;
}

h2 {
  max-width: 49rem;
  margin: 1.4em auto;
}

p {
  line-height: 1.5em;
  margin: 1.4em auto;
  max-width: 49rem;
  font-size: 1em;
  font-weight: 300;
}

/** Code for hover info **/

dfn {
  background: rgba(0, 0, 0, 0.2);
  border-bottom: dashed 1px rgba(0, 0, 0, 0.8);
  padding: 0 0.4em;
  cursor: help;
  font-style: normal;
  position: relative;
}

dfn::after {
  content: attr(data-info);
  display: inline;
  position: absolute;
  top: 22px;
  left: 0;
  opacity: 0;
  width: 230px;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.5em;
  padding: 0.5em 0.8em;
  background: rgba(0, 0, 0, 0.8);
  color: #fff;
  pointer-events: none;
  /* This prevents the box from apearing when hovered. */
  transition:
    opacity 250ms,
    top 250ms;
}

dfn::before {
  content: "";
  display: block;
  position: absolute;
  top: 12px;
  left: 20px;
  opacity: 0;
  width: 0;
  height: 0;
  border: solid transparent 5px;
  border-bottom-color: rgba(0, 0, 0, 0.8);
  transition:
    opacity 250ms,
    top 250ms;
}

dfn:hover {
  z-index: 2;
}

/* Keeps the info boxes on top of other elements */

dfn:hover::after,
dfn:hover::before {
  opacity: 1;
}

dfn:hover::after {
  top: 30px;
}

dfn:hover::before {
  top: 20px;
}