css3如何实现提示文字弹窗

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不需要额外的javascript代码，你可以通过使用css3样式来创建一个类似的效果。

Css代码

[data-tips] {

         position: relative;

         text-decoration: none;

}

         [data-tips]:after,

         [data-tips]:before {

             position: absolute;

             z-index: 100;

                   opacity: 0;

         }

                   [data-tips]:after {

                            content: attr(data-tips);

                            height: 25px;

                            line-height: 25px;

                            padding: 0 10px;

                            font-size: 12px;

                            text-align: center;

                            color: #fff;

                            background: #222;

                            border-radius: 5px;

                            text-shadow: 0 0 5px #000;

                            -moz-box-shadow: 0 0 5px rgba(0,0,0,0.3);

                            -webkit-box-shadow: 0 0 5px rgba(0,0,0,0.3);

                            box-shadow: 0 0 5px rgba(0,0,0,0.3);

                            white-space: nowrap;

                            -moz-box-sizing: border-box;

                            -webkit-box-sizing: border-box;

                            box-sizing: border-box;

                   }

                   [data-tips]:before {

                            content: "";

                            width: 0;

                            height: 0;

                            border-width: 6px;

                            border-style: solid;

                   }

                            [data-tips]:hover:after,

                            [data-tips]:hover:before {

                                     opacity: 1;

                            }

/* Top tips */

[data-tips].top-tip:after,

[data-tips].top-tip:before {

    -webkit-transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;

    -moz-transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;

    transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;

         bottom: 90%;

         left: -9999px;

         margin-bottom: 12px;

}

         [data-tips].top-tip:before {

                   border-color: #222 transparent transparent transparent;

                   margin-bottom: 0;

         }

         [data-tips].top-tip:hover:after,

         [data-tips].top-tip:hover:before {

                   bottom: 100%;

                   left: 0;

         }

         [data-tips].top-tip:hover:before {

                   left: 15px;

         }

/* Bottom tip */

[data-tips].bottom-tip:after,

[data-tips].bottom-tip:before {

    -webkit-transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;

    -moz-transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;

    transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;

         top: 90%;

         left: -9999px;

         margin-top: 12px;

}

         [data-tips].bottom-tip:before {

                   border-color: transparent transparent #222 transparent;

                   margin-top: 0;

         }

         [data-tips].bottom-tip:hover:after,

         [data-tips].bottom-tip:hover:before {

                   top: 100%;

                   left: 0;

         }

         [data-tips].bottom-tip:hover:before {

                   left: 15px;

         }

/* Right tip */

[data-tips].right-tip:after,

[data-tips].right-tip:before {

    -webkit-transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;

    -moz-transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;

    transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;

         top: -9999px;

         left: 96%;

         margin-left: 12px;

}

         [data-tips].right-tip:before {

                   border-color: transparent #222 transparent transparent;

                   margin-left: 0;

         }

         [data-tips].right-tip:hover:after,

         [data-tips].right-tip:hover:before {

                   left: 100%;

                   top: 0;

         }

         [data-tips].right-tip:hover:before {

                   top: 7px;

         }

/* Left tip */

[data-tips].left-tip:after,

[data-tips].left-tip:before {

    -webkit-transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;

    -moz-transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;

    transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;

         top: -9999px;

         right: 96%;

         margin-right: 12px;

}

         [data-tips].left-tip:before {

                   border-color: transparent transparent transparent #222;

                   margin-right: 0;

         }

         [data-tips].left-tip:hover:after,

         [data-tips].left-tip:hover:before {

                   right: 100%;

                   top: 0;

         }

         [data-tips].left-tip:hover:before {

                   top: 7px;

         }

HTML代码

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