@charset "utf-8";
/* CSS Document */
#button {
	display:inline-block;
}
#button:hover .file_menu {
    max-height: 100000px; 
    opacity: 1;
}
ul, li {
    margin:0; 
    padding:0; 
    list-style:none;
}
.menu_class {
	display:inline-block;
	color:#fff;
	width:auto;
}
.file_menu {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    width:100%;
    position: absolute;
    left: 0;
    transition: all .2s;
	z-index:10000;
}

.file_menu li {
	padding-top:20px;
	text-align:left;
}