CSS 提示工具(Tooltip)

本文我們?yōu)榇蠹医榻B如何使用 HTML 與 CSS 來創(chuàng)建提示工具。

提示工具在鼠標(biāo)移動(dòng)到指定元素后觸發(fā)，先看以下四個(gè)實(shí)例：

.tooltip {
position: relative;
display: inline-block;
border-bottom: 1px dotted #ccc;
zcursor: help;
color: #006080;
}
.tooltip .tooltiptext {
visibility: hidden;
position: absolute;
width: 120px;
background-color: #555;
color: #fff;
text-align: center;
padding: 5px 0;
border-radius: 6px;
z-index: 1;
opacity: 0;
transition: opacity .6s;
}
.tooltip:hover .tooltiptext {
visibility: visible;
opacity: 1;
}
.tooltip .tooltiptext2 {
visibility: hidden;
position: absolute;
width: 120px;
background-color: #555;
color: #fff;
text-align: center;
padding: 5px 0;
border-radius: 6px;
z-index: 1;
}
.tooltip:hover .tooltiptext2 {
visibility: visible;
}
.tooltip-right {
top: -5px;
left: 125%;
}
.tooltip-right2 {
top: -5px;
left: 105%;
}

.tooltip-right::after {
content: “”;
position: absolute;
top: 50%;
right: 100%;
margin-top: -5px;
border-width: 5px;
border-style: solid;
border-color: transparent #555 transparent transparent;
}

.tooltip-bottom {
top: 135%;
left: 50%;
margin-left: -60px;
}

.tooltip-bottom2 {
top: 125%;
left: 50%;
margin-left: -60px;
}

.tooltip-bottom::after {
content: “”;
position: absolute;
bottom: 100%;
left: 50%;
margin-left: -5px;
border-width: 5px;
border-style: solid;
border-color: transparent transparent #555 transparent;
}

.tooltip-top {
bottom: 125%;
left: 50%;
margin-left: -60px;
}
.tooltip-top2 {
bottom: 115%;
left: 50%;
margin-left: -60px;
}

.tooltip-top::after {
content: “”;
position: absolute;
top: 100%;
left: 50%;
margin-left: -5px;
border-width: 5px;
border-style: solid;
border-color: #555 transparent transparent transparent;
}

.tooltip-left {
top: -5px;
bottom:auto;
right: 128%;
}

.tooltip-left2 {
top: -5px;
bottom:auto;
right: 105%;
}

.tooltip-left::after {
content: “”;
position: absolute;
top: 50%;
left: 100%;
margin-top: -5px;
border-width: 5px;
border-style: solid;
border-color: transparent transparent transparent #555;
}

.tooltip .tooltiptext-bottomarrow {
visibility: hidden;
width: 120px;
background-color: #111;
color: #fff;
text-align: center;
border-radius: 6px;
padding: 5px 0;
position: absolute;
z-index: 1;
bottom: 130%;
left: 50%;
margin-left: -60px;
}
.tooltip .tooltiptext-bottomarrow::after {