* {
  box-sizing: border-box;
}

div {
  padding: 10px;
  background-color: #f6f6f6;
  overflow: hidden;
  color:rgb(20, 20, 20);
}

input[type=text], textarea, select {
  font: 17px Calibri;
  width: 100%;
  padding: 12px;
  border: 1px solid #ccc;
  border-radius: 4px;
}
input[type=button]{ 
  font: 17px Calibri;
  width: auto;
  float: right;
  cursor: pointer;
  padding: 7px;
}

.column2 {
  display: inline-block;
  column-count: 2;
  text-align: center;
  width: auto;
  background: rgba(0, 34, 128, 0.1) ;
  border-radius: 10px;
}

.column3 {
  display: inline-block;
  column-count: 3;
  text-align: center;
  width: auto;
  background: rgba(0, 34, 128, 0.1) ;
  border-radius: 10px;
}

.column4 {
  display: inline-block;
  column-count: 4;
  text-align: center;
  width: auto;
  background: rgba(0, 34, 128, 0.1) ;
  border-radius: 10px;
}

.column5 {
  display: inline-block;
  column-count: 5 ;
  text-align: center;
  width: auto;
  background: rgba(0, 34, 128, 0.1) ;
  border-radius: 10px;
}

.column6 {
  display: inline-block;
  column-count: 6;
  text-align: center;
  width: auto;
  background: rgba(0, 34, 128, 0.1) ;
  border-radius: 10px;
}

.column7 {
  display: inline-block;
  column-count: 7;
  text-align: center;
  width: auto;
  background: rgba(0, 34, 128, 0.1) ;
  border-radius: 10px;
}

.column8 {
  display: inline-block;
  column-count: 8;
  text-align: center;
  width: auto;
  background: rgba(0, 34, 128, 0.1) ;
  border-radius: 10px;
}

.slidecontainer {
  width: 100%;
  border-radius: 10px;
}

body {
  font: 17px Calibri;
  width: 80%;
  margin: auto;
  background-color: rgb(80, 80, 80);
}

.collapsible {
  background-color: #777;
  color: white;
  cursor: pointer;
  padding: 18px;
  width: 100%;
  border: none;
  text-align: left;
  outline: none;
  font-size: 15px;
}

.active, .collapsible:hover {
  background-color: #555;
}

.collapsible:after {
  content: '\002B';
  color: white;
  font-weight: bold;
  float: right;
  margin-left: 5px;
}

.active:after {
  content: "\2212";
}

.content {
  padding: 0 18px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.2s ease-out;
  background-color: #f1f1f1;
}

input[type=button] {
  width: 100%;
  background-color: #2856d3;
  color: white;
  padding: 14px 20px;
  margin: 8px 0;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

footer {
  font: 17px Calibri;
  margin: auto;
  color: white;
}