html中span添加tooltip,javascript - Add a tooltip to a div - Stack Overflow
There are lots of answers to this question but still may be it will help someone. It is for all left, right, top, bottom positions.
Here is the css:
.m-tb-5 {
margin-top: 2px;
margin-bottom: 2px;
}
[data-tooltip] {
display: inline-block;
position: relative;
cursor: help;
padding: 3px;
}
/* Tooltip styling */
[data-tooltip]:before {
content: attr(data-tooltip);
display: none;
position: absolute;
background: #000;
color: #fff;
padding: 3px 6px;
font-size: 10px;
line-height: 1.4;
min-width: 100px;
text-align: center;
border-radius: 4px;
}
/* Dynamic horizontal centering */
[data-tooltip-position="top"]:before,
[data-tooltip-position="bottom"]:before {
left: 50%;
-ms-transform: translateX(-50%);
-moz-transform: translateX(-50%);
-webkit-transform: translateX(-50%);
transform: translateX(-50%);
}
/* Dynamic vertical centering */
[data-tooltip-position="right"]:before,
[data-tooltip-position="left"]:before {
top: 50%;
-ms-transform: translateY(-50%);
-moz-transform: translateY(-50%);
-webkit-transform: translateY(-50%);
transform: translateY(-50%);
}
[data-tooltip-position="top"]:before {
bottom: 100%;
margin-bottom: 6px;
}
[data-tooltip-position="right"]:before {
left: 100%;
margin-left: 6px;
}
[data-tooltip-position="bottom"]:before {
top: 100%;
margin-top: 6px;
}
[data-tooltip-position="left"]:before {
right: 100%;
margin-right: 6px;
}
/* Tooltip arrow styling/placement */
[data-tooltip]:after {
content: '';
display: none;
position: absolute;
width: 0;
height: 0;
border-color: transparent;
border-style: solid;
}
/* Dynamic horizontal centering for the tooltip */
[data-tooltip-position="top"]:after,
[data-tooltip-position="bottom"]:after {
left: 50%;
margin-left: -6px;
}
/* Dynamic vertical centering for the tooltip */
[data-tooltip-position="right"]:after,
[data-tooltip-position="left"]:after {
top: 50%;
margin-top: -6px;
}
[data-tooltip-position="top"]:after {
bottom: 100%;
border-width: 6px 6px 0;
border-top-color: #000;
}
[data-tooltip-position="right"]:after {
left: 100%;
border-width: 6px 6px 6px 0;
border-right-color: #000;
}
[data-tooltip-position="left"]:after {
right: 100%;
border-width: 6px 0 6px 6px;
border-left-color: #000;
}
/* Show the tooltip when hovering */
[data-tooltip]:hover:before,
[data-tooltip]:hover:after {
display: block;
z-index: 50;
}
And the HTML tag can be like this:
Text Here
Text Here
Text Here
Text Here