body{
  background-color: white;
  font-family: "Lucida Console", "Courier New", monospace;
  font-size: 16px;
}

.main_div{
  text-align: center;
  margin: auto;
  margin-top: 10%;
  width: 10%;
  border: 3px solid black;
  padding: 5%;
  background: #ed8034; /* Old browsers */
  background: -moz-linear-gradient(top,  #ed8034 0%, #ffffff 0%, #addbb2 100%); /* FF3.6-15 */
  background: -webkit-linear-gradient(top,  #ed8034 0%,#ffffff 0%,#addbb2 100%); /* Chrome10-25,Safari5.1-6 */
  background: linear-gradient(to bottom,  #ed8034 0%,#ffffff 0%,#addbb2 100%); /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ed8034', endColorstr='#addbb2',GradientType=0 ); /*IE6-9*/
}

.web_div{
  text-align: center;
  height: auto;
  width: auto;
  padding: 1%;
}

.headline{
  font-size: xx-large;
}

.small_headline{
  font-size: large;
}

.column {
  float: left;
  padding: 1%;
}

.left, .right {
  width: 18%;
  border-bottom: solid black 2px;
  text-align: left;
}

.middle {
  width: 58%;
  text-align: left;

}

.row:after {
  content: "";
  display: table;
  clear: both;
}

.grouping{
  padding: 4%;
  text-align: center;
}

.select_button{
  border: solid black 1px; 
  font-family: "Lucida Console", "Courier New", monospace;
  padding: 3%;
  background-color: white;
}

.invalid_feedback{
  color: red;
  font: arial;

}

a:link, a:visited {
  font-family: "Lucida Console", "Courier New", monospace;
  padding: 3%;
  background-color: white;
  color: black;
  text-align: center;
  text-decoration: none;
  display: inline-block;
}

a:hover, a:active {
  background-color: white;
}

.head_section{
  text-align: left;
  border-bottom: solid black 1px;

}

.dropbtn {
  background-color: white;
  color: black;
  padding: 16px;
  font-size: 16px;
  border: solid black 1px;
}

.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-content {
  display: none;
  position: absolute;
  background-color: #f1f1f1;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
}

.dropdown-content a {
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
}

.dropdown-content a:hover {background-color: #ddd;}

.dropdown:hover .dropdown-content {display: block;}

.dropdown:hover .dropbtn {background-color: #addbb2;}


.centr{
  text-align: center;
}

.devider{
border: 1px solid rgb(0, 0, 0);
}

.invisible_devider{
  visibility: hidden;
}

.box{
border: 2px solid rgb(0, 0, 0);
padding: 2%;
width: 40%;
}

.box_2{
  border: 2px solid rgb(0, 0, 0);
  background-color: white;
  padding: 0.3%;
  padding-left: 0.5%;
  padding-right: 0.5%;
  width: fit-content;
  font-family: "Lucida Console", "Courier New", monospace;
  color: rgb(0, 0, 0);
  text-decoration: none;
  margin: auto;
  cursor: pointer;
}

.main_table{
margin: auto;
}

.text{
font-family: "Lucida Console", "Courier New", monospace;
color: rgb(0, 0, 0);
text-decoration: none;
}

h1{
font-family: "Lucida Console", "Courier New", monospace;
font-size: 300%;
}

.placeholder{
  border: 3px, solid, black;
}

.standart_button{
border-style: solid;
border-color: rgb(0, 0, 0);
}

.data_fields_left{
  text-align: left;
  margin-left: 50%;
  margin-right: 50%;
  padding-right: 20px;  
}

.data_fields{
  text-align: left;
  margin-left: 50%;
  margin-right: 50%;  
}

th{
  border-bottom: 1px solid rgb(0, 0, 0);
  border-left: 1px solid rgb(0, 0, 0);
}

canvas{
  padding-left: 0;
  padding-right: 0;
  margin-left: auto;
  margin-right: auto;
  display: block;
  width: "90%";
  height: "45%";
  border: 2px solid rgb(0, 0, 0);
}

#popupbox{
margin: 0; 
margin-left: 40%; 
margin-right: 40%;
margin-top: 50px; 
padding-top: 10px; 
width: 20%; 
height: 150px; 
position: absolute; 
background: #FBFBF0; 
border: solid #000000 2px; 
z-index: 9; 
font-family: arial; 
visibility: hidden; 


}


.button_table {
  padding-left: 10px;
  padding-right: 10px;
  float: center;
}