* {
	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: 30px;
}
header {
	display: block;
	background-image:url(../../images/ebook-banner/lecon_3.png);
	background-repeat: no-repeat;
	width: 850px;
    height: 177px;
    
    position: relative;
    margin: 0 auto
}

.small-grid .pencil {
	background-image: url(../../images/pencil.png);
	background-repeat: no-repeat;
	background-position: center;
	background-size: 70%;
	height: 40px;
	width: 40px;
	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: 45px;
	margin: 10px 0 0 5px;
}
.head_number {
	display: block;
	width: 15px;
	height: 20px;
	color: #000;
	text-align: center;
	position: relative;
	left: 15px;
	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;
	background-color: #9bc65f;
	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;
}

.small-grid .right {
	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:block;
	vertical-align: top;
	margin: 2% auto;
	text-align: left;
	margin-left: 124px;
	text-align: center;
	max-width: 80%;
}

.column img {
	width: 100%;
}

.slt {
	position: absolute;
}

.sl1 { 
	top: 120px;
    left: 50px;
}

.sl2 { 
	top: 87px;
    left: 300px;
    transform: rotate(3deg);
}

.sl3 { 
	top: 94px;
    left: 530px;
    transform: rotate(359deg);
}

.mycheck label {
	display: block !important;
	padding: 0px !important;
	height: 24px;
}

.mycheck {
	position: absolute;
}

.check1 {
	top: 175px;
    left: 20px;
}
.check2 {
	top: 140px;
    left: 264px;
    transform: rotate(2deg);
}
.check3 {
	top: 150px;
    left: 510px;
}

.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: left;
	line-height: 1.8em;
}

.greyspan {
	width: 100px;
	display: inline-block;
	color: #999;
	text-align: right;
}
.input2 {
	width: 340px;
	text-align: left;

	border: none;
	position: relative;
	border-bottom: 1px dashed #000;
	font-size: 16px;
	background: none;
	padding: 0;
	top: 0;
	left: 0;
	margin: 0;
}
.input1 {
	width: 120px;
	text-align: center;
	font-family: "PFTransport-Regular";
	border: none;
	position: relative;
	border-bottom: 1px dashed #000;
	font-size: 16px;
	background: none;
	padding: 0;
	top: 0;
	left: 0;
	margin: 0;
	margin-left: 20px;
  }

  input[type=text]:disabled {
	display: inline-block;
	width: 30px;
	font-family: "PFTransport-Regular";
	border: none;
	position: relative;
	border-bottom: 1px dashed #000;
	font-size: 16px;
	background: none;
	padding: 0;
	top: 0;
	left: 0;
	margin: 0;
  }

  .box {
	display: block;
	margin: 0 auto;
	position: relative;
	margin-right: 30px;
  }


  span.colored {
	color: #9bc65f;
	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;
}


footer {
	left: 0;
	bottom: 0;

	width: 100%;
	overflow: hidden;
}


/*-------keyboard-----------------------*/

* {
	margin: 0;
	padding: 0;
	position: relative;
  }
  
  .toggle,
  .toggler {
	display: inline-block;
	vertical-align: top;
	margin: 2% auto auto 10px;
  }
  
  .toggler {
	color: slategray;
	transition: 0.2s;
  }
  
  .toggler--is-noactive {
	background: url(../../../assets/images/off.png);
	-webkit-background-size: cover;
	-moz-background-size: cover;
	-o-background-size: cover;
	background-size: cover;
	background-size: 100%;
	background-repeat: no-repeat;
	width: 40px;
	height: 25px;
  }
  
  .toggler--is-active {
	color: black;
	background: url(../../../assets/images/on.png);
	-webkit-background-size: cover;
	-moz-background-size: cover;
	-o-background-size: cover;
	background-size: cover;
	background-size: 100%;
	background-repeat: no-repeat;
	width: 40px;
	height: 25px;
  }
  
  .b {
	display: block;
  }
  
  .toggle {
	width: 45px;
	height: 25px;
	border-radius: 100px;
	background-color: #ccc;
	overflow: hidden;
	box-shadow: inset 0 0 2px 1px rgba(0, 0, 0, 0.05);
  }
  
  .cc {
	width: 45px;
	height: 25px;
	border-radius: 100px;
	background-color: #2ecc71;
	overflow: hidden;
	box-shadow: inset 0 0 2px 1px rgba(0, 0, 0, 0.05);
  }
  
  .check {
	position: absolute;
	display: block;
	cursor: pointer;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	opacity: 0;
	z-index: 6;
  }
  
  .check:checked ~ .switch {
	right: 2px;
	left: 37.5%;
	transition: 0.25s cubic-bezier(0.785, 0.135, 0.15, 0.86);
	transition-property: left, right;
	transition-delay: 0.08s, 0s;
  }
  
  .switch {
	position: absolute;
	left: 2px;
	top: 2px;
	bottom: 2px;
	right: 37.5%;
	background-color: #fff;
	border-radius: 36px;
	z-index: 1;
	transition: 0.25s cubic-bezier(0.785, 0.135, 0.15, 0.86);
	transition-property: left, right;
	transition-delay: 0s, 0.08s;
	box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  }
  
  /*-------keyboard end-----------------------*/
  
  .flex-2 {
	  display: flex;
	  flex-direction: row;
	  align-items: center;
	  width: 850px;
  }

  label.btn span {
	font-size: 1.4em;margin: 5px;padding: 4px;
}
.fa-2x {
  font-size: 1.5em !important;  
}
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;
	background-color: #fff;
}
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;
	background-color: #fff;
}
label:hover input[type="checkbox"] ~ i.fa {
	color: #00aeef;
}
div[data-toggle="buttons"] label.active {
	color: #000;
}
div[data-toggle="buttons"] label {
	display: inline-block;
	padding: 10px 5px;
	margin-bottom: 0;
	font-size: 14px;
	font-weight: normal;
	/*  line-height: 2em;*/
	text-align: left;
	white-space: nowrap;
	vertical-align: top;
	cursor: pointer;
	background-color: none;
	border: 0px solid #fff;
	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: #000;
	text-shadow: 0 0 9px #fff;
}
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;
	padding: 0;
}
.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
}