html-dropdown-menu/dist/dropdown.css

A javascript library for create drop down menu in your app.

@keyframes showmenucontents {
	0%{
		opacity: 0;
		transform: translate(0,-30%);
	}
	100%{
		opacity: 1;
		transform: none;
	}
}

.dropdown{
	line-height: 24px;
	display: block;
	box-sizing: border-box;
	background-color: rgb(53,57,62);
	color: whitesmoke
}
.dropdown *{
	box-sizing: border-box;
}

.dropdown-category {
	min-width: 96px;	
	display: inline-block;
	list-style-type: none;
	position: relative;
	outline: none;
}


.dropdown-category:hover > .dropdown-contents {
	display: block;
	animation: showmenucontents 0.2s ease-out forwards;
}

.dropdown-category .dropdown-category{
	width: 100%;
}

.dropdown-title{
    display: inline-block;
    width: 100%;
    text-align: center;
}
.dropdown-category:hover > .dropdown-title {
	background-color: rgb(65,64,64);
}

.dropdown-contents {
	padding: 4px;
	position: absolute;
    background-color: rgb(80,80,80);
    box-shadow: 0 0 8px 1px black;
    min-height: 32px;
    min-width: 128px;
	display: none;
	z-index: 100;
}

.dropdown-contents span {
    display: inline-block;
	width: 100%;
    line-height: 24px;
	padding: 4px;
    white-space: nowrap;
}

.dropdown-contents span:hover {
	background-color: #03a7eba0;
} 


.dropdown-contents .dropdown-nest-contents {
	padding: 4px;
	display: none;
	position: absolute;
	top:0px;
	left:calc(100%);
}