* {
	box-sizing: border-box;
	padding: 0;
	margin: 0;
}
body {
	font-size: 100%;
	font-weight: 300;
	color: #888;
	width: 100%;
}
img {
	max-width: 100%;
}
nav {
	border: 0;
	-o-transition: all .3s;
	-moz-transition: all .3s;
	-webkit-transition: all .3s;
	-ms-transition: all .3s;
	transition: all .3s;
	text-align: left;
	margin-left: 50px;
}
header {
	display: block;
	background-image:url(../../images/ebook-banner/unit7_7.png);
	background-repeat: no-repeat;
	margin: 0 auto;
	width: 850px;
	height: 141px;
	
	position: relative;
}
.lecon {
width: 87%;
display: inline-block;
text-align: left;
height: 85px;

}

.small-grid .pencil {
	background-image: url(../../images/pencil.png);
	background-repeat: no-repeat;
	background-position: center;
	background-size: 100%;
	height: 45px;
	width: 30px;
	margin: 10px 0 0 5px;
	
}
.small-grid .headphones {
	background-image:url(../../images/headphones.png);
	background-repeat: no-repeat;
	background-position: center;
	background-size: 100%;
	height: 40px;
	width: 40px;
	margin: 10px 0 0 5px;
}
.head_number {
	display: block;
	width: 15px;
	height: 20px;
	color: #000;
	text-align: center;
	position: relative;
	left: 11px;
	font-family: 'PFTransport-Regular';
	top: 10px;
	font-weight: 600;
}
.small-grid .cd {
	background-image: url(../../images/cd-9.png);
	background-repeat: no-repeat;
	background-position: center;
	background-size: 100%;
	height: 40px;
	width: 40px;
	margin: 10px 0 0 5px;
}
.small-grid .exer_number {
	margin: 15px 0 0 5px;
}
.number {
	display: block;
	width: 32px;
	height: 32px;
	text-align: center;
	position: relative;
	font-family: "PFCentroSlabPro-Medium";
	font-weight: bold;
	border-radius: 50%;
	line-height: 1.4em;
	
	color: #ffff;
	font-size: 23px;
}
.small-grid, .item-grid {
	width: 80%;
	padding: 0;
	margin: 0;
}
.item-grid li {
	list-style-type: none;
	margin: 0 17px 40px 15px;
	padding: 0;
	display: inline-block;
 *display: inline;
	zoom: 1;
	vertical-align: top;
}
.small-grid li {
	/*border: 1px solid rgba(0, 0, 0, 0.2);*/
	list-style-type: none;
	padding: 0;
	display: inline-block;
 *display: inline;
	zoom: 1;
	vertical-align: top;
}
.small-grid .left {
	margin: 5px -28px 0 -5px;
	height: auto;
	text-align: center;
}
.small-grid .center {
	margin: 20px 0 0 5px;
	height: auto;
}

/*---------------- header -----------------------*/
.container {
	width: 900px;
	display: block;
	text-align: center;
	background: #FFF;
}
section {
	width: 900px;
	margin: 0 auto;
	background: #FFF;
}
.prosfonisi > p {
	line-height: 1.3em;
	color: #000;
	font-size: 20px;
	font-weight: normal;
	font-family: 'PFCentroSlabPro-Medium';
	text-align: left;
}

/*-------------------title--------------------------*/
.column {
	padding: 0;
	display: inline-block;
	vertical-align: top;
	margin: 2% auto;
	width:40%;
	
}
.green_title{
	display: block;
	float:left;
	font-family: "PFCentroSlabPro-Medium";
	font-size: 22px;
	font-weight:bold;
	
	color: #fff;
	border-radius:6px;
	margin-left:60px;
	padding:5px;
	padding-left:15px;
	padding-right:15px;
}
.column.image {
	background-image:url(../../images/exercises-images/page19_exer1.png);
	background-repeat: no-repeat;
	
   
	height:425px;
    width: 500px;
	
	
}

.clearfix {
	width: 100%;
	clear: both;
	height: 20px;
}
.drag-grid {
	display: block;
	text-align: center;
	height: 100px;
	margin: 15px auto 0 auto;
	padding: 0;
	border-top: 2px #00617f solid;
	border-bottom: 2px #00617f solid;
	width: 60%;
}
.drag-grid li {
	list-style-type: none;
	margin: 7px 5px 0 5px;
	padding: 0;
	display: inline-block;
 *display: inline;
	zoom: 1;
	vertical-align: top;
	cursor: all-scroll;
	z-index: 1;
}
.drag-grid li {
	/* background-color: #6FC696; */
	width: auto;
	padding: 3px;
	height: auto;
	font-size: 15px;
	color: #000;
}
label {
	top: 0;
	color: #000;
	font-size: 17px;
    font-family: 'PFTransport-Regular';
	display: block;
	padding: 1px;
	text-align: center;
	line-height: 1.7em;
}
span.colored {
    color: #fcb034;
    display: inline-block;
    width: 20px;
    font-family: 'PFTransport-Regular';
}




.grey {
	color: #999
}

input[type="text"]:disabled {
	color: #000;
}
.left_ {
	margin-left: 1.3em
}
.left_x {
	margin-left: 1em
}
span.red {
	color: #F00;
}
input[type="text"]:disabled {
	color: #006595;
	font-size: 17px;
}
input:focus {
	border-bottom-color: #83b4db;
	-webkit-box-shadow: 0 0 0 0 white, 0 2px 2px #83b4db;
	-moz-box-shadow: 0 0 0 0 white, 0 2px 2px #83b4db;
	box-shadow: 0 0 0 0 white, 0 2px 2px #83b4db;
	background: #faf0b7;
}

.clear {
	display: block;
	clear: both;
	width: 100%;

}
footer {
	left: 0;
	bottom: 0;

	width: 100%;
	overflow: hidden;
}
th{padding: 5px;}
table{position: relative; z-index: 100}

th{background: #aae2d4; font-family: 'PFTransport-Regular'; color: #000;}

th:nth-child(1){border: none; background: none}


td > label:nth-child(1){text-align: left}
td > label:nth-child(2){text-align: center}




td, th {
  border: 1px solid #8edac7;
  text-align: center;
  padding-left: 5px;
	
	border-collapse: collapse;
	position: relative;
}


td.bg_colored{ position: relative; background-color: #fef6e7; width: 35px; }
td.bg_colored > label{ text-align: left;padding: 5px;}
.fa-2x {
    font-size: 3em !important;
}
label.btn span {
	font-size: 17px;
	float: right;
	text-align: center;
	
}
label input[type="radio"] ~ i.fa.fa-circle-o {
	color: #c8c8c8;
	display: inline;
}
label input[type="radio"] ~ i.fa.fa-dot-circle-o {
	display: none;
}
label input[type="radio"]:checked ~ i.fa.fa-circle-o {
	display: none;
}
label input[type="radio"]:checked ~ i.fa.fa-dot-circle-o {
	color: #7AA3CC;
	display: inline;
}
label:hover input[type="radio"] ~ i.fa {
	color: #7AA3CC;
}
label input[type="checkbox"] ~ i.fa.fa-square-o {
	color: #000;
	display: inline;

}
label input[type="checkbox"] ~ i.fa.fa-check-square-o {
	display: none;
}
label input[type="checkbox"]:checked ~ i.fa.fa-square-o {
	display: none;
}
label input[type="checkbox"]:checked ~ i.fa.fa-check-square-o {
	color: #00aeef;
	display: inline;
}
label:hover input[type="checkbox"] ~ i.fa {
	color: #00aeef;
}
div[data-toggle="buttons"] label.active {
	color: #00aeef;
}
div[data-toggle="buttons"] label {
	display: inline-block;
	padding: 5px 5px;
	margin-bottom: 0;
	font-size: 0.45em;
	font-weight: normal;
	/* line-height: 2em; */
	text-align: left;
	/* white-space: nowrap; */
	vertical-align: top;
	cursor: pointer;
	background-color: none;
	border-radius: 3px;
	/* color: #c8c8c8; */
	color: #000;
	-webkit-user-select: none;
	-moz-user-select: none;
	-ms-user-select: none;
	-o-user-select: none;
	user-select: none;
	text-shadow: none;
	
}
div[data-toggle="buttons"] label:hover {
	color: #00aeef;
}
div[data-toggle="buttons"] label:active, div[data-toggle="buttons"] label.active {
	-webkit-box-shadow: none;
	box-shadow: none;
}
.btn-group, .btn-group-vertical {
	position: relative;
	display: inline-block;
	vertical-align: middle;
}
.btn-group>.btn, .btn-group-vertical>.btn {
	position: relative;
	float: left
}
.btn-group>.btn:hover, .btn-group-vertical>.btn:hover, .btn-group>.btn:focus, .btn-group-vertical>.btn:focus, .btn-group>.btn:active, .btn-group-vertical>.btn:active, .btn-group>.btn.active, .btn-group-vertical>.btn.active {
	z-index: 2
}
.btn-group-vertical>.btn, .btn-group-vertical>.btn-group, .btn-group-vertical>.btn-group>.btn {
	display: block;
	float: none;
	width: 100%;
	max-width: 100%
}
.btn-group-vertical>.btn-group>.btn {
	float: none
}
.btn-group-vertical>.btn:not(:first-child):not(:last-child) {
	border-radius: 0
}
.btn-group-vertical>.btn:first-child:not(:last-child) {
	border-top-right-radius: 4px;
	border-bottom-right-radius: 0;
	border-bottom-left-radius: 0
}
.btn-group-vertical>.btn:last-child:not(:first-child) {
	border-bottom-left-radius: 4px;
	border-top-right-radius: 0;
	border-top-left-radius: 0
}
.btn-group-vertical>.btn-group:not(:first-child):not(:last-child)>.btn {
	border-radius: 0
}
.btn-group-vertical>.btn-group:first-child:not(:last-child)>.btn:last-child, .btn-group-vertical>.btn-group:first-child:not(:last-child)>.dropdown-toggle {
	border-bottom-right-radius: 0;
	border-bottom-left-radius: 0
}
.btn-group-vertical>.btn-group:last-child:not(:first-child)>.btn:first-child {
	border-top-right-radius: 0;
	border-top-left-radius: 0
}
 [data-toggle=buttons]>.btn>input[type=radio], [data-toggle=buttons]>.btn>input[type=checkbox] {
display:none
}
 @media only screen and (max-width: 13000px) {
.column {
/* width:350px;*/
}
}
 @media only screen and (max-width: 1000px) {
.column {
/*   width:250px;*/
}
}