bootstrap 4 popover close code example
Example: bootstrap 4 popover content from div
.popover-html ul {
list-style: none;
margin: 0;
padding: 0;
}
.popover-html ul li {
display: inline-block;
white-space: nowrap;
width: 33%;
}
.popover-html ul li + li {
padding-left: 5px;
}