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To create an arrow that should appear from a specific side of the tooltip, add "empty"
Formula
content after tooltip, with the pseudo - element class::after together with the content property. The arrow itself is created using borders. This will make the tooltip look like a speech bubble. This example demonstrates how to add an arrow to the bottom of the tooltip: Bottom Arrow.tooltiptext::after {
content: " ";
position: absolute;
top: 100%;/* At the bottom of the tooltip */
left: 50%;
margin-left: -5px;
border-width: 5px;
border-style: solid;
border-color: black transparent transparent transparent;
}Position the arrow inside the tooltip: top: 100% will place the arrow at the bottom of the tooltip. left: 50% will center the arrow.
The border-width property specifies the size of the arrow. If you change this, also change the margin-left value to the same. This will keep the arrow centered. The border-color is used to transform the content into an arrow. We set the top border to black, and the rest to transparent. If all sides were black, you would end up with a black square box. This example demonstrates how to add an arrow to the top of the tooltip. Notice that we set the bottom border color this time: Top Arrow.tooltiptext::after {
content: " ";
position: absolute;
bottom: 100%; /* At the top of the tooltip */
left: 50%;
margin-left: -5px;
border-width: 5px;
border-style: solid;
border-color: transparent transparent black transparent;
}This example demonstrates how to add an arrow to the left of the tooltip: Left Arrow.tooltiptext::after {
content: " ";
position: absolute;
top: 50%;
right: 100%; /* To the left of the tooltip */
margin-top: -5px;
border-width: 5px;
border-style: solid;
border-color: transparent black transparent transparent;
}This example demonstrates how to add an arrow to the right of the tooltip: Right Arrow.tooltiptext::after {
content: " ";
position: absolute;
top: 50%;
left: 100%; /* To the right of the tooltip */
margin-top: -5px;
border-width: 5px;
border-style: solid;
border-color: transparent transparent transparent black;
}