#vk_pdf_viewer{
        width: 905px;
        margin: auto;
        height: auto;
    }
    #canvas_container{
        width: 892px;
        margin: auto;
        height: auto;
        overflow: auto;
        background: #333;
        text-align: center;
        border: solid 3px #f5622e;
    }
    #current_page{
        width: 30px;
		height:21px;
        border-radius: 0px;
        border: 2px solid #f5622e;
        text-align: center;
    }
    .zoom{
        background-color: #f4511e;
        border: none;
        color: #FFFFFF;
        text-align: center;
        transition: all 0.5s;
        cursor: pointer;
        padding: 5px;
        width: 80px;
    }
    .Previous {
  background-color: #f4511e;
  border: none;
  color: #FFFFFF;
  text-align: center;
  transition: all 0.5s;
  cursor: pointer;
  padding: 5px;
  width: 90px;
}

.Previous span {
  cursor: pointer;
  display: inline-block;
  position: relative;
  transition: 0.5s;
}

.Previous span:after {
  content: '\00ab';
  position: absolute;
  opacity: 0;
  top: 0;
  left: -65px;
  transition: 0.5s;
}

.Previous:hover span {
  padding-left: 15px;
}
.Previous:hover span:after{
    opacity: 1;
    right: 0;
}

.Next {
  background-color: #f4511e;
  border: none;
  color: #FFFFFF;
  text-align: center;
  transition: all 0.5s;
  cursor: pointer;
  padding: 5px;
  width: 90px;
}

.Next span {
  cursor: pointer;
  display: inline-block;
  position: relative;
  transition: 0.5s;
}

.Next span:after {
  content: '\00bb';
  position: absolute;
  opacity: 0;
  top: 0;
  right: -20px;
  transition: 0.5s;
}

.Next:hover span {
  padding-right: 25px;
}
.Next:hover span:after{
    opacity: 1;
    right: 0;
}
@media screen and (max-width: 1023px) {
 #vk_pdf_viewer{
        position:fixed;
        width: 100%;
        float:left;
		margin: auto;
        height: auto;
		overflow: auto;
    }
 
 #canvas_container {
    position:fixed;
    width: 100%;
	float:left;
    margin: auto;
    height: auto;
	overflow: auto;
    }