invoiceninja/storage/templates/clean.css

body {
    font-family: 'Open Sans', Helvetica, arial, sans-serif;
    color: #161616;
}

.grey-upper {
	font-size: 11px;
	letter-spacing: 3px;
	text-transform: uppercase;
	color: #9a9a9a;
}

.blue-upper {
	padding-bottom: 8px;
	font-size: 11px;
	letter-spacing: 3px;
	text-transform: uppercase;
	color: #37a3c6;
	margin: 0;
}

p span.client  {
	margin:5px 0px 0px 0px;
}

h1.heading {
	font-size: 48px;
	line-height: 53px;
	text-transform: uppercase;
	font-weight: 100;
	letter-spacing: 3px;
	padding: 0 50px;
}

h3.client.name {
	padding: 0;
	margin: 0 0 -10px 0;
	font-size:18px;
	font-weight: 600;
}

span.client.address1, span.client.city, span.client.state, span.client.postal-code {
	font-size: 14px;
	line-height: 18.5px;
}

h3.account.name {
	padding: 0;
	margin: 0 0 -10px 0;
	font-size:18px;
	font-weight: 600;
}

span.account.address1, span.account.city, span.account.state, span.account.postal-code {
	font-size: 14px;
	line-height: 18.5px;
}


.card-title {
	font-size: 13px;
	letter-spacing: 3px;
	text-transform: uppercase;
	color: #37a3c6;
	font-weight: 600;
}

.card-text {
	font-size: 15px;
	line-height: 21px;
}


a.button {
	background: #37a3c6;
	padding: 12px 25px;
	border-radius: 2px;
	color: #fff;
	text-transform: uppercase;
	font-size: 12px;
	text-decoration: none;
	letter-spacing: 3px;
	font-weight: 600;
	margin: 15px 0;
}

a.button:hover {
	background: #161616;
}

/****** Table *****************************************/

.grey-bg {
	background: #eeefef;
}

table td {
	padding: 20px;
}

tr.top-header {
	height: 350px;
}

tr.top-header td {
	padding: 80px 0 0 0;
	border-bottom: 1px solid #dddcdc;
}

tr.top-header h1.heading {
	margin: 0;
}

tr.top-header p {
	margin: 5px 0 0 0;
}

.proposal-info {
	height: 350px;
}

.proposal-info td {
	padding: 0 0 120px 0;
}

tr.block-quote {
	margin: 50px 0 ;
}

tr.block-quote td {
	background: #fbfbfb;
	font-style: italic;
	padding: 0 75px;
	font-size: 17px;
	line-height: 24px;
	padding: 80px 120px;
	color: #686766;
	border-top: 1px solid #dddcdc;
	border-bottom: 1px solid #dddcdc;
}

tr.footer td {
	background: #f0efef;
	font-size: 12px;
	letter-spacing: 3px;
	color: #8c8b8a;
	padding: 50px 0;
	text-transform: uppercase;
}

/****** Misc *****************************************/


hr {
	border: 0;
	height: 1px;
	background: #dddada;
}

.footer img {
	vertical-align: middle;
}