And Here is the CSS for Moving WordPress Admin Bar to the Bottom

wordpress-bar-css.css

body.admin-bar #wphead {
   padding-top: 0;
}
#wpadminbar {
    top: auto !important;
    bottom: 0;
    position: fixed;
}
#wpadminbar .quicklinks .menupop ul {
    position: absolute;
    bottom: 32px;
    background-color: #23282d;
}
#wpadminbar .quicklinks .menupop ul + ul {
	bottom: 70px;
}
#wpadminbar .quicklinks .menupop ul ul {
	transform: translateY(62px);
	-webkit-transform: translateY(62px);
	-ms-transform: translateY(62px);
}
#wpadminbar .quicklinks .menupop ul.ab-sub-secondary {
	bottom: 64px;
	position: absolute;
}
@media screen and (max-width: 782px) {
	#wpadminbar .quicklinks .menupop ul {
		bottom: 46px;
	}

	#wpadminbar .quicklinks .menupop ul + ul,
	#wpadminbar .quicklinks .menupop ul.ab-sub-secondary {
		bottom: 86px;
	}

	#wpadminbar .quicklinks .menupop ul ul {
		transform: translateY(92px);
		-webkit-transform: translateY(92px);
		-ms-transform: translateY(92px);
	}
}