Nice set of base styles for WordPress Blank themes and Roots theme

base-typography.css

/*-----------------------------------------
Typography
--------------------------------------------*/

img.alignleft, img.alignright, img.alignnone {
	border-radius: 0;
	border: none;
}

.content img.alignleft, .content img.alignright, .content img.alignnone {
	background: #FFF;
	box-shadow: 0 1px 5px rgba(0, 0, 0, 0.15);
	border: none;
	padding: 5px;
}

.alignleft {
	float: left;
	margin: 0 25px 10px 0;
}

.alignright {
	float: right;
	margin: 0 0 30px 30px;
}

.alignnone {
	float: none;
	display: block;
	text-align: center;
	margin: 0 auto 30px;
}

.thumbnail .caption {
	text-align: center;
	font-size: 11px;
}

.content .main {
	margin: 40px 0px 50px;
}

.sidebar {
	margin: 50px 0 50px;
	max-width: 290px;
}

.main ul, .content .main ol {
	margin: 0 0 2em;
	padding-left: 20px;
}

.content .main ul li, .content .main ol li {
	line-height: 1.6;
	margin-bottom: 0.8em;
}

.content > .main blockquote, .content > .main blockquote p {
	font-size: 16px;
	font-style: italic;
	line-height: 1.5;
}

p.attribute {
	text-align: right;
	font-weight: bold;
	color: #0077c0;
	margin: 0 0 30px;
}

.wp-caption img {
	max-width: 100%;
}

.content .main > p:first-of-type {
	font-size: 1.5em;
	font-weight: bold;
	border-bottom: 1px solid #e5e5e5;
	line-height: 1.5em;
	padding: 0 0 20px;
	margin: 0 0 20px;
}

/* Search Results */

article.hentry {
	margin: 0 0 30px;
	padding: 0 0 30px;
	border-bottom: 1px solid #F1F1F1;
}

.entry-summary p {
	margin: 0;
}

/* ------------------------------
* Sidebar
---------------------------------*/

.sidebar .directions-widget .map-wrap {
	float: none;
	width: 100%;
}

.sidebar .directions-widget .acf-map {
	width: 100%;
}

.sidebar .directions-widget address {
	display: block;
}

.sidebar .gform_wrapper { padding: 0 15px; }

.sidebar .ginput_right, .sidebar .ginput_left {
	width: 100%;
	float: none;
	margin: 0 0 10px;
	display: block;
}

.sidebar .gform_footer {
	text-align: center;
}

.widget-title {
	padding-left: 20px;
	font-size: 26px;
	margin: 0 0 25px;
	border-top: 1px solid #c0c0c0;
	border-bottom: 1px solid #c0c0c0;
	text-align: center;
	padding: 10px 0;
	color: #0077c0;
}

.sidebar ul {
	padding: 0;
	margin: 0;
}

.sidebar .widget {
	margin: 0 0 50px;
	padding: 0;
}

.sidebar, .sidebar p {
	font-size: 12px;
	line-height: 22px;
}

/* Subpages Widget */

.subpages-widget {
	box-shadow: 0 5px 8px rgba(0, 0, 0, 0.21);
}

.subpages-widget ul li {
	list-style-type: none;
	margin: 0;
	padding: 0;
}

.subpages-widget ul li:first-child a {
	border-top: none;
}

.subpages-widget ul li a {
	font-size: 18px;
	color: #6a747c;
	display: block;
	box-shadow: inset 0 1px 1px #FFF;
	border-top: 1px solid rgba(0, 0, 0, 0.15);
	padding: 15px 15px 15px 55px;
	position: relative;
}

.subpages-widget ul li a > span {
	border-right:1px solid rgba(0, 0, 0, 0.15);
	position: absolute;
	left: 0;
	top: 0;
	height: 100%;
	width: 40px;
	box-shadow: inset -1px 0px 1px #FFF;
}

.subpages-widget ul li a > span:before {
	content: "";
	border-color: rgba(0, 0, 0, 0) #b3b7bb;
	border-style: solid;
	border-width: 0.25em 0 0.25em 0.35em;
	display: block;
	height: 0;
	width: 0;
	left: 17px;
	top: 22px;
	position: relative;
}

.subpages-widget ul li a:hover {
	text-decoration: none;
	color: #3f484f;
	background: rgba(0, 0, 0, 0.04);
}


.subpages-widget ul li.current_page_item a {
	color:#2289c8;
}

.subpages-widget ul li.current_page_item a span:before {
	border-color: rgba(0, 0, 0, 0) #2289c8;

}

/* ------------------------------
* Standard WordPress Widget Styles
---------------------------------*/

/* Categories and Archive Widgets */

.sidebar .widget.widget_categories ul ul, .sidebar .widget.widget_pages ul ul, .sidebar .widget.widget_nav_menu ul ul {
	margin: 0 !important;
	padding: 0 0 0 20px;
}

.sidebar .widget.widget_categories li, .sidebar .widget.widget_pages li, .sidebar .widget.widget_nav_menu li, .sidebar .widget.widget_archive li {
	padding: 8px 0;
	display: block;
	border-bottom: 1px solid #E6E6E6;
}

.sidebar .widget.widget_categories li li, .sidebar .widget.widget_pages li li, .sidebar .widget.widget_nav_menu li li, .sidebar .widget.widget_archive li li {
	border-bottom: 0;
}

.sidebar .widget.widget_categories > ul > li:first-child > a, .sidebar .widget.widget_pages > ul > li:first-child > a, .sidebar .widget.widget_nav_menu > ul > li:first-child > a, .sidebar .widget.widget_archive > ul > li:first-child > a {
	padding-top: 0px;
}

.sidebar label {
	text-transform: uppercase;
	font-size: 12px;
}

.sidebar .gform_heading {
	margin: 0 0 20px;
}

/* Calendar Widget */

.widget_calendar {
}

#wp-calendar {
	width: 100%;
}

#wp-calendar caption {
	text-align: center;
	font-size: 12px;
	margin-top: 10px;
	margin-bottom: 15px;
	text-transform: uppercase;
	font-weight: bold;
}

#wp-calendar thead {
	font-size: 10px;
}

#wp-calendar thead th {
	padding-bottom: 10px;
}

#wp-calendar tbody {
	color: #aaa;
}

#wp-calendar tbody td {
	background: #ECECEC;
	border: 1px solid #E0E0E0;
	text-align: center;
	padding: 8px;
}

#wp-calendar tbody td:hover {
	background: #fff;
}

#wp-calendar tbody .pad {
	background: none;
}

#wp-calendar tfoot #next {
	font-size: 10px;
	text-transform: uppercase;
	text-align: right;
}

#wp-calendar tfoot #prev {
	font-size: 10px;
	text-transform: uppercase;
	padding-top: 10px;
}