How to Make Magic, Animated Tooltips With CSS
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| <html> | |
| <head> | |
| <style> | |
| /* START TOOLTIP STYLES */ | |
| [tooltip] { | |
| position: relative; /* opinion 1 */ | |
| } | |
| /* Applies to all tooltips */ | |
| [tooltip]::before, | |
| [tooltip]::after { | |
| text-transform: none; /* opinion 2 */ | |
| font-size: .9em; /* opinion 3 */ | |
| line-height: 1; | |
| user-select: none; | |
| pointer-events: none; | |
| position: absolute; | |
| display: none; | |
| opacity: 0; | |
| } | |
| [tooltip]::before { | |
| content: ''; | |
| border: 5px solid transparent; /* opinion 4 */ | |
| z-index: 1001; /* absurdity 1 */ | |
| } | |
| [tooltip]::after { | |
| content: attr(tooltip); /* magic! */ | |
| /* most of the rest of this is opinion */ | |
| font-family: Helvetica, sans-serif; | |
| text-align: center; | |
| /* | |
| Let the content set the size of the tooltips | |
| but this will also keep them from being obnoxious | |
| */ | |
| min-width: 3em; | |
| max-width: 21em; | |
| white-space: nowrap; | |
| overflow: hidden; | |
| text-overflow: ellipsis; | |
| padding: 1ch 1.5ch; | |
| border-radius: .3ch; | |
| box-shadow: 0 1em 2em -.5em rgba(0, 0, 0, 0.35); | |
| background: #333; | |
| color: #fff; | |
| z-index: 1000; /* absurdity 2 */ | |
| } | |
| /* Make the tooltips respond to hover */ | |
| [tooltip]:hover::before, | |
| [tooltip]:hover::after { | |
| display: block; | |
| } | |
| /* don't show empty tooltips */ | |
| [tooltip='']::before, | |
| [tooltip='']::after { | |
| display: none !important; | |
| } | |
| /* FLOW: UP */ | |
| [tooltip]:not([flow])::before, | |
| [tooltip][flow^="up"]::before { | |
| bottom: 100%; | |
| border-bottom-width: 0; | |
| border-top-color: #333; | |
| } | |
| [tooltip]:not([flow])::after, | |
| [tooltip][flow^="up"]::after { | |
| bottom: calc(100% + 5px); | |
| } | |
| [tooltip]:not([flow])::before, | |
| [tooltip]:not([flow])::after, | |
| [tooltip][flow^="up"]::before, | |
| [tooltip][flow^="up"]::after { | |
| left: 50%; | |
| transform: translate(-50%, -.5em); | |
| } | |
| /* FLOW: DOWN */ | |
| [tooltip][flow^="down"]::before { | |
| top: 100%; | |
| border-top-width: 0; | |
| border-bottom-color: #333; | |
| } | |
| [tooltip][flow^="down"]::after { | |
| top: calc(100% + 5px); | |
| } | |
| [tooltip][flow^="down"]::before, | |
| [tooltip][flow^="down"]::after { | |
| left: 50%; | |
| transform: translate(-50%, .5em); | |
| } | |
| /* FLOW: LEFT */ | |
| [tooltip][flow^="left"]::before { | |
| top: 50%; | |
| border-right-width: 0; | |
| border-left-color: #333; | |
| left: calc(0em - 5px); | |
| transform: translate(-.5em, -50%); | |
| } | |
| [tooltip][flow^="left"]::after { | |
| top: 50%; | |
| right: calc(100% + 5px); | |
| transform: translate(-.5em, -50%); | |
| } | |
| /* FLOW: RIGHT */ | |
| [tooltip][flow^="right"]::before { | |
| top: 50%; | |
| border-left-width: 0; | |
| border-right-color: #333; | |
| right: calc(0em - 5px); | |
| transform: translate(.5em, -50%); | |
| } | |
| [tooltip][flow^="right"]::after { | |
| top: 50%; | |
| left: calc(100% + 5px); | |
| transform: translate(.5em, -50%); | |
| } | |
| /* KEYFRAMES */ | |
| @keyframes tooltips-vert { | |
| to { | |
| opacity: .9; | |
| transform: translate(-50%, 0); | |
| } | |
| } | |
| @keyframes tooltips-horz { | |
| to { | |
| opacity: .9; | |
| transform: translate(0, -50%); | |
| } | |
| } | |
| /* FX All The Things */ | |
| [tooltip]:not([flow]):hover::before, | |
| [tooltip]:not([flow]):hover::after, | |
| [tooltip][flow^="up"]:hover::before, | |
| [tooltip][flow^="up"]:hover::after, | |
| [tooltip][flow^="down"]:hover::before, | |
| [tooltip][flow^="down"]:hover::after { | |
| animation: tooltips-vert 300ms ease-out forwards; | |
| } | |
| [tooltip][flow^="left"]:hover::before, | |
| [tooltip][flow^="left"]:hover::after, | |
| [tooltip][flow^="right"]:hover::before, | |
| [tooltip][flow^="right"]:hover::after { | |
| animation: tooltips-horz 300ms ease-out forwards; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <main> | |
| <div> | |
| <span tooltip="I'm up above it!">Up</span> | |
| </div> | |
| <div> | |
| <span tooltip="Slide to the left" flow="left">Left</span> | |
| <span tooltip="Slide to the right" flow="right">Right</span> | |
| </div> | |
| <div> | |
| <span tooltip="Get Down." flow="down">Down</span> | |
| </div> | |
| </main> | |
| <aside> | |
| </aside> | |
| </body> | |
| </html> |
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