.main-wrapper {
  height: 100%;
}

.learnBTN{

font-weight:bolder;
font-family:Calibri;
font-size:16px;
padding:6px 12px;
border:1px solid #3A619C;
background:#7AA17A;
color:#fff;
}

.learnBTN:hover{

font-weight:bolder;
font-family:Calibri;
font-size:16px;
padding:6px 12px;
border:1px solid #7AA17A;
background:#7AA17A;
color:#fff;
text-decoration:underline;
}

.main-wrapper {
  padding-top: 100px;
}

.contentPREVE {
  margin: auto;
  max-width: 600px;
  padding: 30px;
  background: #777;
  color: white;
}
/*==========================================
    settings box
==========================================*/

input[type="checkbox"],
input[type="radio"] {
  position: absolute;
  visibility: hidden;
  
}

.settings-box-element {
  z-index: 10;
  
}

.buttons-wrapper {
  position: fixed;
  top: 132px;
  right: 0px;
  width: 280px;
  height: 280px;
  background: #FFFFFF;
 
  
}

.settings-btn + label {
  position: fixed;
  top: 130px;
  right: -10px;
  display: block;
  width: 35px;
  color: #e83737;
  text-align: center;
  background: transparent;
  cursor: pointer;

  
}

.settings-btn:checked + label {
 /* right: 280px;
*/
 
  
}
.hideads{
display: none;
}

.settings-btn:checked ~ .buttons-wrapper {
  right: 0;
  
}

.layout-buttons {
  display: block;
  width: 150px;
  padding: 10px 0;
  text-align: center;
  border: 2px solid black;
  box-sizing: border-box;
  font-size: 0.875em;
  cursor: pointer;
}

.settings-btn:checked ~ .layout-buttons {
  right: 30px;
    
}

input[type="radio"]:checked + label {
  background: #e83737;
  color: #fff;
  border-color: #e83737;
}

.light-layout + label {
  position: fixed;
  top: 140px;
  right: -150px;
}

.dark-layout + label {
  position: fixed;
  top: 185px;
  right: -150px;
}

.image-layout + label {
  position: fixed;
  top: 230px;
  right: -150px;
}

.pattern-layout + label {
  position: fixed;
  top: 275px;
  right: -150px;
}

.hide-show-content + label {
  position: fixed;
  top: 320px;
  right: -150px;
}

.dark-layout:checked ~ .main-wrapper {
  background: #494949;
}

.light-layout:checked ~ .main-wrapper {
  background: #eaeaea;
}

.image-layout:checked ~ .main-wrapper {
  background: url(http://bestinspired.com/wp-content/uploads/2015/03/4-Nature-Wallpapers-2014-1.jpg) no-repeat center 0 fixed;
  /*-- change the image from here --*/
}

.pattern-layout:checked ~ .main-wrapper {
  background: url(https://i.imgur.com/uKfMXs7.png) repeat;
  /*-- change the pattern from here --*/
}

.hide-show-content:checked ~ .main-wrapper .content {
  display: none;
}