* {
  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 0.3s;
  -moz-transition: all 0.3s;
  -webkit-transition: all 0.3s;
  -ms-transition: all 0.3s;
  transition: all 0.3s;
  text-align: left;
  margin-left: 30px;
}
header {
  display: block;
  background-image: url(../../images/ebook-banner/lecon4.png);
  background-repeat: no-repeat;
  position: relative;
  margin: 0 auto;
  width: 850px;
  height: 213px;
}

.small-grid .pencil {
  background-image: url(../../images/01-52.png);
  background-repeat: no-repeat;
  background-position: center;
  background-size: 100%;
  height: 40px;
  width: 40px;
  margin: 10px 0 0 5px;
  display: none !important;
}
.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: 9px;
  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: #6ac9c7;
  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-left: 11px;
}
.column.exer {
  padding: 9px;
  display: inline-block;
  width: 65%;
  margin: 0 auto;
  vertical-align: top;
}

.column.exer_bottom {
  padding: 9px;
  display: inline-block;
  width: 65%;

  vertical-align: top;
}

.column.exer_midlle {
  padding: 9px;
  display: inline-block;
  width: 65%;
  margin: 1% auto;
  vertical-align: top;
}

.with_image {
  width: 793px;
  height: 395px;
  background: url(../../images/exercises-images/p67_exer1.PNG);
  margin: 1% auto;
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
}

.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: "DejaVu Sans", sans-serif;
  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;
  font-family: "Chinacat Thin";
  border: none;
  position: relative;
  border-bottom: 1px dashed #000;
  font-size: 16px;
  background: none;
  padding: 0;
  top: 0;
  left: 0;
  margin: 0;
}
.input1 {
  width: 115px;
  text-align: left;
  font-family: "Chinacat Thin";
  border: none;
  position: relative;
  border-bottom: 1px dashed #000;
  font-size: 16px;
  background: none;
  padding: 0;
  top: 0;
  left: 0;
  margin: 0;
}
.grey {
  color: #999;
}
.num {
  color: #8db05f;
  font-weight: bold;
}
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;
}
span.blue_nodrag {
  color: #006595;
  font-size: 18px;
  line-height: 1.8em;
  display: block;
  font-family: "Atma";
  font-weight: bold;
}
span.items {
  font-size: 18px;
  cursor: all-scroll;
  z-index: 1;
  line-height: 1.8em;
  color: #231f20;
  font-family: "Atma";
}
span.blue {
  color: #006595;
  line-height: 1.8em;
}
.wrapper {
  display: inline-flex;
  margin: 0;
  padding: 0;
  align-items: center;
  justify-content: center;
}
i {
  padding: 0;
}

.icons-container {
  border-radius: 4px;
  width: 1000px;
  background-color: white;
  padding: 10px;
  /*box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23);*/
  position: relative;
  margin: 0 auto;
  text-align: center;
}
textarea {
  padding: 10px;
}
textarea {
  display: block;
  box-sizing: padding-box;
  overflow: hidden;
  padding: 4px;
  width: 250px;
  font-size: 14px;
}
footer {
  left: 0;
  bottom: 0;
  height: 100px;
  width: 100%;
  overflow: hidden;
}
table {
  border-spacing: 6px;
  border-collapse: collapse;
  width: 100%;
}
td,
th {
  text-align: center;
  padding: 5px;
  color: #000;
  border: 1px solid #ffe886;
}
label.btn span {
  font-size: 17px;

  left: 10px;
  position: relative;
}

span.clickable {
}

.square1 {
  width: 150px;
  height: 170px;
  /* border: 2px solid red; */
  cursor: pointer;
  position: absolute;
}

.square2 {
  position: absolute;
  width: 150px;
  height: 170px;
   /* border: 2px solid green; */
  cursor: pointer;
}

.square3 {
  position: absolute;
  width: 150px;
  height: 170px;
   /* border: 2px solid blue; */
  cursor: pointer;
}

.square4 {
  position: absolute;
  width: 150px;
  height: 170px;
   /* border: 2px solid orange; */
  cursor: pointer;
}
.square5 {
  width: 55px;
  height: 55px;
  /* border: 2px solid red; */
  cursor: pointer;
  position: absolute;
}

.square6 {
  position: absolute;
  width: 55px;
  height: 55px;
   /* border: 2px solid green; */
  cursor: pointer;
}

.square7 {
  position: absolute;
  width: 55px;
  height: 55px;
   /* border: 2px solid green; */
  cursor: pointer;
}

.square8 {
  position: absolute;
  width: 55px;
  height: 55px;
   /* border: 2px solid green; */
  cursor: pointer;
}

.square9 {
  position: absolute;
  width: 55px;
  height: 55px;
   /* border: 2px solid green; */
  cursor: pointer;
}

.square10 {
  position: absolute;
  width: 100px;
  height: 55px;
   /* border: 2px solid green; */
  cursor: pointer;
}

.square11 {
  position: absolute;
  width:100px;
  height: 55px;
   /* border: 2px solid green; */
  cursor: pointer;
}

.square12 {
  position: absolute;
  width: 100px;
  height: 55px;
   /* border: 2px solid green; */
  cursor: pointer;
}

.square13 {
  position: absolute;
  width: 100px;
  height: 55px;
   /* border: 2px solid green; */
  cursor: pointer;
}

.square14 {
  position: absolute;
  width: 100px;
  height: 55px;
   /* border: 2px solid green; */
  cursor: pointer;
}

.selected {
  background-color: yellow;
}

#svg {
  width: 750px;
  height: 400px;
}

#svg line {
  stroke: red;
  stroke-width: 1.5px;
  cursor: not-allowed;
}