// The dropdown wrapper (`
`)
.dropup,
.dropend,
.dropdown,
.dropstart {
position: relative;
}
.dropdown-toggle {
white-space: nowrap;
// Generate the caret automatically
@include caret();
}
// The dropdown menu
.dropdown-menu {
position: absolute;
top: 100%;
left: 0;
z-index: $zindex-dropdown;
display: none; // none by default, but block on "open" of the menu
min-width: $dropdown-min-width;
padding: $dropdown-padding-y $dropdown-padding-x;
margin: $dropdown-spacer 0 0; // override default ul
@include font-size($dropdown-font-size);
color: $dropdown-color;
text-align: left; // Ensures proper alignment if parent has it changed (e.g., modal footer)
list-style: none;
background-color: $dropdown-bg;
background-clip: padding-box;
border: $dropdown-border-width solid $dropdown-border-color;
@include border-radius($dropdown-border-radius);
@include box-shadow($dropdown-box-shadow);
// Reset positioning when positioned with Popper
&[style] {
right: auto;
}
}
// scss-docs-start responsive-breakpoints
// We deliberately hardcode the `bs-` prefix because we check
// this custom property in JS to determine Popper's positioning
@each $breakpoint in map-keys($grid-breakpoints) {
@include media-breakpoint-up($breakpoint) {
$infix: breakpoint-infix($breakpoint, $grid-breakpoints);
.dropdown-menu#{$infix}-start {
--bs-position: start;
right: auto #{"/* rtl:ignore */"};
left: 0 #{"/* rtl:ignore */"};
}
.dropdown-menu#{$infix}-end {
--bs-position: end;
right: 0 #{"/* rtl:ignore */"};
left: auto #{"/* rtl:ignore */"};
}
}
}
// scss-docs-end responsive-breakpoints
// Allow for dropdowns to go bottom up (aka, dropup-menu)
// Just add .dropup after the standard .dropdown class and you're set.
.dropup {
.dropdown-menu {
top: auto;
bottom: 100%;
margin-top: 0;
margin-bottom: $dropdown-spacer;
}
.dropdown-toggle {
@include caret(up);
}
}
.dropend {
.dropdown-menu {
top: 0;
right: auto;
left: 100%;
margin-top: 0;
margin-left: $dropdown-spacer;
}
.dropdown-toggle {
@include caret(end);
&::after {
vertical-align: 0;
}
}
}
.dropstart {
.dropdown-menu {
top: 0;
right: 100%;
left: auto;
margin-top: 0;
margin-right: $dropdown-spacer;
}
.dropdown-toggle {
@include caret(start);
&::before {
vertical-align: 0;
}
}
}
// Dividers (basically an `
`) within the dropdown
.dropdown-divider {
height: 0;
margin: $dropdown-divider-margin-y 0;
overflow: hidden;
border-top: 1px solid $dropdown-divider-bg;
}
// Links, buttons, and more within the dropdown menu
//
// `