* {
	box-sizing: border-box;
	padding: 0;
	margin: 0;
}
body {
	font-size: 100%;
	font-weight: 300;
	color: #888;

	width: 100%;
}
a:link {
  text-decoration: none;
}

a:visited {
  text-decoration: none;
}

a:hover {
  text-decoration: none;
}

a:active {
  text-decoration: none;
}
img {
	max-width: 100%;
}

.container {
	width:1000px;


	display: block;

	text-align: center;

	background: #FFF;
}
section {
	width: 1000px;
	margin: 0 auto;
	
	background: #FFF;
}

.column {
	
	display: inline-block;
	width: 80%;
	margin: 1% auto;
	vertical-align: top;
	text-align: left;

}

.column.image_left{
	height:621px;
	background:url(../../images/cover-pages/1_Page_17.png);
	background-size: 100%;
	background-repeat: no-repeat;
	width:450px;

	
}
.column.image_right{
	height:621px;
	background:url(../../images/cover-pages/1_Page_18.png);
	background-size: 100%;
	width:450px;
	position: relative;


	
}



.clearfix {
	width: 100%;
	clear: both;
	height: 20px;
}

footer {
  

    left: 0;
    bottom: 0;
 
    width: 100%;
    overflow: hidden;
}


.go-to-exercise {
	width: 100%;
	display: inline-block;
	position: relative;

	
}
.go-to-exercise {
	width: 100%;
	display: inline-block;
	position: relative;
	vertical-align: top;

}
.go-to-exercise.regular {
	display: inline-block;
	position: relative;
	
}

.right_1 {
height: 175px;
display: inline-block;
position: relative;

}
.right_2 {
height: 150px;
display: inline-block;
position: relative;

}
.right_3 {
height: 175px;
display: inline-block;
position: relative;

}
.right_4 {
height: 90px;
display: inline-block;
position: relative;

}

.left_1 {
height: 175px;
display: inline-block;
position: relative;

}
.left_2 {
height: 300px;
display: inline-block;
position: relative;

}
.left_3 {
height: 110px;
display: inline-block;
position: relative;

}
.left_4 {
height: 110px;
display: inline-block;
position: relative;
width: 39%;
}
.left_5 {
height: 113px;
display: inline-block;
position: relative;
width: 97%
}
.left_6 {
height: 80px;
display: inline-block;
position: relative;
width: 97%;
}
.left_7 {
height: 100px;
display: inline-block;
position: relative;
width: 97%;
}
.left_8 {
height: 120px;
display: inline-block;
position: relative;
width: 49%;

}
.left_9 {
height:95px;
display: inline-block;
position: relative;
width: 93%;
}