Tooltip Arrows
Borders can draw an arrow that makes a tooltip resemble a speech bubble. Start with the ::after pseudo-element and the content property to place empty content after the tooltip, then shape it into an arrow on whichever side you choose.
Bottom Arrow
In this first example, the arrow is added to the tooltip's bottom edge.
Example
The tooltip shows up above the text, and its arrow points down.
Output: complete HTML page
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Css Tooltip Arrows</title>
<style>
.tooltip {
position: relative;
display: inline-block;
border-bottom: 1px dotted black;
}
.tooltip .tooltiptext {
visibility: hidden;
width: 120px;
background-color: black;
color: #fff;
text-align: center;
border-radius: 6px;
padding: 5px 0;
position: absolute;
z-index: 1;
bottom: 150%;
left: 50%;
margin-left: -60px;
}
.tooltip .tooltiptext::after {
content: " ";
position: absolute;
top: 100%;
left: 50%;
margin-left: -5px;
border-width: 5px;
border-style: solid;
border-color: black transparent transparent transparent;
}
.tooltip:hover .tooltiptext {
visibility: visible;
}
</style>
</head>
<body>
<h2>Bottom Arrow Tooltip</h2>
<p>Move the mouse over the text below:</p>
<div class="tooltip">Hover over me
<span class="tooltiptext">Tooltip text</span>
</div>
</body>
</html>
Example Explained
The arrow's position is set inside the tooltip: top: 100% puts it at the bottom, and left: 50% centers it.
Note: The arrow's size comes from border-width. Whenever you change that value, change margin-left to match, or the arrow will no longer be centered.
What turns the content into an arrow is border-color: the top border is set to black and the others to transparent. With black on every side, the result would be a black square box.
Top Arrow
Here the arrow moves up to the tooltip's top edge. Note that the color now goes on the bottom border instead.
Example
Output: complete HTML page
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Css Tooltip Arrows</title>
<style>
.tooltip {
position: relative;
display: inline-block;
border-bottom: 1px dotted black;
}
.tooltip .tooltiptext {
visibility: hidden;
width: 120px;
background-color: black;
color: #fff;
text-align: center;
border-radius: 6px;
padding: 5px 0;
position: absolute;
z-index: 1;
top: 150%;
left: 50%;
margin-left: -60px;
}
.tooltip .tooltiptext::after {
content: " ";
position: absolute;
bottom: 100%;
left: 50%;
margin-left: -5px;
border-width: 5px;
border-style: solid;
border-color: transparent transparent black transparent;
}
.tooltip:hover .tooltiptext {
visibility: visible;
}
</style>
</head>
<body>
<h2>Top Arrow Tooltip</h2>
<p>Move the mouse over the text below:</p>
<div class="tooltip">Hover over me
<span class="tooltiptext">Tooltip text</span>
</div>
</body>
</html>
Left Arrow
This time the arrow is attached to the left side of the tooltip.
Example
Output: complete HTML page
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Css Tooltip Arrows</title>
<style>
.tooltip {
position: relative;
display: inline-block;
border-bottom: 1px dotted black;
}
.tooltip .tooltiptext {
visibility: hidden;
width: 120px;
background-color: black;
color: #fff;
text-align: center;
border-radius: 6px;
padding: 5px 0;
position: absolute;
z-index: 1;
top: -5px;
left: 110%;
}
.tooltip .tooltiptext::after {
content: " ";
position: absolute;
top: 50%;
right: 100%;
margin-top: -5px;
border-width: 5px;
border-style: solid;
border-color: transparent black transparent transparent;
}
.tooltip:hover .tooltiptext {
visibility: visible;
}
</style>
</head>
<body>
<h2>Left Arrow Tooltip</h2>
<p>Move the mouse over the text below:</p>
<div class="tooltip">Hover over me
<span class="tooltiptext">Tooltip text</span>
</div>
</body>
</html>
Right Arrow
The last variation puts the arrow on the right side of the tooltip.
Example
Output: complete HTML page
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Css Tooltip Arrows</title>
<style>
.tooltip {
position: relative;
display: inline-block;
border-bottom: 1px dotted black;
}
.tooltip .tooltiptext {
visibility: hidden;
width: 120px;
background-color: black;
color: #fff;
text-align: center;
border-radius: 6px;
padding: 5px 0;
position: absolute;
z-index: 1;
top: -5px;
right: 110%;
}
.tooltip .tooltiptext::after {
content: " ";
position: absolute;
top: 50%;
left: 100%;
margin-top: -5px;
border-width: 5px;
border-style: solid;
border-color: transparent transparent transparent black;
}
.tooltip:hover .tooltiptext {
visibility: visible;
}
</style>
</head>
<body>
<h2>Right Arrow Tooltip</h2>
<p>Move the mouse over the text below:</p>
<div class="tooltip">Hover over me
<span class="tooltiptext">Tooltip text</span>
</div>
</body>
</html>