yii2-app-basic/web/css/site.css

body {
	padding-top: 70px;
}

.footer {
	border-top: 1px solid #ddd;
	margin-top: 30px;
	padding-top: 15px;
	padding-bottom: 30px;
}

.jumbotron {
	text-align: center;
	background-color: transparent;
}

.jumbotron .btn {
	font-size: 21px;
	padding: 14px 24px;
}

/* add sorting icons to gridview sort links */
a.asc:after, a.desc:after {
    position: relative;
    top: 1px;
    display: inline-block;
    font-family: 'Glyphicons Halflings';
    font-style: normal;
    font-weight: normal;
    line-height: 1;
    padding-left: 5px;
}

a.asc:after  { content: /*"\e113"*/"\e151"; }
a.desc:after { content: /*"\e114"*/"\e152"; }

.sort-numerical a.asc:after { content: "\e153"; }
.sort-numerical a.desc:after { content: "\e154"; }

.sort-ordinal a.asc:after { content: "\e155"; }
.sort-ordinal a.desc:after { content: "\e156"; }