css3 实现 tooltip
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 | /* 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 : 1 ch 1.5 ch; border-radius: . 3 ch; 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 300 ms 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 300 ms ease-out forwards; } |
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