How to make this slider autoplay?

Question

I am using this really cool pure css slider in one of my projects it works super fine but the thing is i want the slides to auto play in the project, i don't know much about js, here is my code. Please have a look and suggest something. I have tried this . but it didn't worked.

<div class="csslider">
     <input type="radio" name="slides" id="slides_1" checked />
     <input type="radio" name="slides" id="slides_2" />
     <input type="radio" name="slides" id="slides_3" />
     <input type="radio" name="slides" id="slides_4" />
     <input type="radio" name="slides" id="slides_N" />
     <ul>
         <li>Content of slide 1</li>
         <li>Content of slide 2</li>
         <li>Content of slide 3</li>
         <li>Content of slide 4</li>
         <li>Content of slide N</li>
     </ul>
     <div class="arrows">
         <label for="slides_1"></label>
         <label for="slides_2"></label>
         <label for="slides_3"></label>
         <label for="slides_4"></label>
         <label for="slides_N"></label>
         <label for="slides_1" class="goto-first"></label>
         <label for="slides_N" class="goto-last"></label>
     </div>
     <div class="navigation">
        <div>
            <label for="slides_1"></label>
            <label for="slides_2"></label>
            <label for="slides_3"></label>
            <label for="slides_4"></label>
            <label for="slides_N"></label>
        </div>
     </div>
 </div>

and here is the cssslider.css file

.csslider {
  -moz-perspective: 1300px;
  -ms-perspective: 1300px;
  -webkit-perspective: 1300px;
  perspective: 1300px;
  display: inline-block;
  text-align: left;
  position: relative;
  margin-bottom: 22px;
}
.csslider > input {
  display: none;
}
.csslider > input:nth-of-type(10):checked ~ ul li:first-of-type {
  margin-left: -900%;
}
.csslider > input:nth-of-type(9):checked ~ ul li:first-of-type {
  margin-left: -800%;
}
.csslider > input:nth-of-type(8):checked ~ ul li:first-of-type {
  margin-left: -700%;
}
.csslider > input:nth-of-type(7):checked ~ ul li:first-of-type {
  margin-left: -600%;
}
.csslider > input:nth-of-type(6):checked ~ ul li:first-of-type {
  margin-left: -500%;
}
.csslider > input:nth-of-type(5):checked ~ ul li:first-of-type {
  margin-left: -400%;
}
.csslider > input:nth-of-type(4):checked ~ ul li:first-of-type {
  margin-left: -300%;
}
.csslider > input:nth-of-type(3):checked ~ ul li:first-of-type {
  margin-left: -200%;
}
.csslider > input:nth-of-type(2):checked ~ ul li:first-of-type {
  margin-left: -100%;
}
.csslider > input:nth-of-type(1):checked ~ ul li:first-of-type {
  margin-left: 0%;
}
.csslider > ul {
  position: relative;
  width: 100%;
  height: 100%;
  z-index: 1;
  font-size: 0;
  line-height: 0;
  background-color: #3a3a3a;
  border: 0px solid #3a3a3a;
  margin: 0 auto;
  padding: 0;
  overflow: hidden;
  white-space: nowrap;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}
.csslider > ul > li {
  position: relative;
  display: inline-block;
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-size: 15px;
  font-size: initial;
  line-height: normal;
  -moz-transition: all 0.5s cubic-bezier(0.4, 1.3, 0.65, 1);
  -o-transition: all 0.5s ease-out;
  -webkit-transition: all 0.5s cubic-bezier(0.4, 1.3, 0.65, 1);
  transition: all 0.5s cubic-bezier(0.4, 1.3, 0.65, 1);
  vertical-align: top;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  white-space: normal;
}
.csslider > ul > li.scrollable {
  overflow-y: scroll;
}
.csslider > .navigation {
  position: absolute;
  bottom: -8px;
  left: 50%;
  z-index: 10;
  margin-bottom: -10px;
  font-size: 0;
  line-height: 0;
  text-align: center;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
.csslider > .navigation > div {
  margin-left: -100%;
}
.csslider > .navigation label {
  position: relative;
  display: inline-block;
  cursor: pointer;
  border-radius: 50%;
  margin: 0 4px;
  padding: 4px;
  background: #3a3a3a;
}
.csslider > .navigation label:hover:after {
  opacity: 1;
}
.csslider > .navigation label:after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  margin-left: -6px;
  margin-top: -6px;
  background: #71ad37;
  border-radius: 50%;
  padding: 6px;
  opacity: 0;
}
.csslider > .arrows {
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
.csslider.inside .navigation {
  bottom: 10px;
  margin-bottom: 10px;
}
.csslider.inside .navigation label {
  border: 1px solid #7e7e7e;
}
.csslider > input:nth-of-type(1):checked ~ .navigation label:nth-of-type(1):after,
.csslider > input:nth-of-type(2):checked ~ .navigation label:nth-of-type(2):after,
.csslider > input:nth-of-type(3):checked ~ .navigation label:nth-of-type(3):after,
.csslider > input:nth-of-type(4):checked ~ .navigation label:nth-of-type(4):after,
.csslider > input:nth-of-type(5):checked ~ .navigation label:nth-of-type(5):after,
.csslider > input:nth-of-type(6):checked ~ .navigation label:nth-of-type(6):after,
.csslider > input:nth-of-type(7):checked ~ .navigation label:nth-of-type(7):after,
.csslider > input:nth-of-type(8):checked ~ .navigation label:nth-of-type(8):after,
.csslider > input:nth-of-type(9):checked ~ .navigation label:nth-of-type(9):after,
.csslider > input:nth-of-type(10):checked ~ .navigation label:nth-of-type(10):after,
.csslider > input:nth-of-type(11):checked ~ .navigation label:nth-of-type(11):after {
  opacity: 1;
}
.csslider > .arrows {
  position: absolute;
  left: -31px;
  top: 50%;
  width: 100%;
  height: 26px;
  padding: 0 31px;
  z-index: 0;
  -moz-box-sizing: content-box;
  -webkit-box-sizing: content-box;
  box-sizing: content-box;
}
.csslider > .arrows label {
  display: none;
  position: absolute;
  top: -50%;
  padding: 13px;
  box-shadow: inset 2px -2px 0 1px #3a3a3a;
  cursor: pointer;
  -moz-transition: box-shadow 0.15s, margin 0.15s;
  -o-transition: box-shadow 0.15s, margin 0.15s;
  -webkit-transition: box-shadow 0.15s, margin 0.15s;
  transition: box-shadow 0.15s, margin 0.15s;
}
.csslider > .arrows label:hover {
  box-shadow: inset 3px -3px 0 2px #71ad37;
  margin: 0 0px;
}
.csslider > .arrows label:before {
  content: '';
  position: absolute;
  top: -100%;
  left: -100%;
  height: 300%;
  width: 300%;
}
.csslider.infinity > input:first-of-type:checked ~ .arrows label.goto-last,
.csslider > input:nth-of-type(1):checked ~ .arrows > label:nth-of-type(0),
.csslider > input:nth-of-type(2):checked ~ .arrows > label:nth-of-type(1),
.csslider > input:nth-of-type(3):checked ~ .arrows > label:nth-of-type(2),
.csslider > input:nth-of-type(4):checked ~ .arrows > label:nth-of-type(3),
.csslider > input:nth-of-type(5):checked ~ .arrows > label:nth-of-type(4),
.csslider > input:nth-of-type(6):checked ~ .arrows > label:nth-of-type(5),
.csslider > input:nth-of-type(7):checked ~ .arrows > label:nth-of-type(6),
.csslider > input:nth-of-type(8):checked ~ .arrows > label:nth-of-type(7),
.csslider > input:nth-of-type(9):checked ~ .arrows > label:nth-of-type(8),
.csslider > input:nth-of-type(10):checked ~ .arrows > label:nth-of-type(9),
.csslider > input:nth-of-type(11):checked ~ .arrows > label:nth-of-type(10) {
  display: block;
  left: 0;
  right: auto;
  -moz-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  -o-transform: rotate(45deg);
  -webkit-transform: rotate(45deg);
  transform: rotate(45deg);
}
.csslider.infinity > input:last-of-type:checked ~ .arrows label.goto-first,
.csslider > input:nth-of-type(1):checked ~ .arrows > label:nth-of-type(2),
.csslider > input:nth-of-type(2):checked ~ .arrows > label:nth-of-type(3),
.csslider > input:nth-of-type(3):checked ~ .arrows > label:nth-of-type(4),
.csslider > input:nth-of-type(4):checked ~ .arrows > label:nth-of-type(5),
.csslider > input:nth-of-type(5):checked ~ .arrows > label:nth-of-type(6),
.csslider > input:nth-of-type(6):checked ~ .arrows > label:nth-of-type(7),
.csslider > input:nth-of-type(7):checked ~ .arrows > label:nth-of-type(8),
.csslider > input:nth-of-type(8):checked ~ .arrows > label:nth-of-type(9),
.csslider > input:nth-of-type(9):checked ~ .arrows > label:nth-of-type(10),
.csslider > input:nth-of-type(10):checked ~ .arrows > label:nth-of-type(11),
.csslider > input:nth-of-type(11):checked ~ .arrows > label:nth-of-type(12) {
  display: block;
  right: 0;
  left: auto;
  -moz-transform: rotate(225deg);
  -ms-transform: rotate(225deg);
  -o-transform: rotate(225deg);
  -webkit-transform: rotate(225deg);
  transform: rotate(225deg);
}
/*#region MODULES */
/*#endregion */

Answer 1

Look like the time is come to add javascript..

 var slidesCbx = document.querySelectorAll('input[name=slides]'); setInterval(function(){ var activeSlide; for(var i=0;i<slidesCbx.length;i++){ if(slidesCbx[i].checked) activeSlide = (i+1)%slidesCbx.length; slidesCbx[i].checked = false; } slidesCbx[activeSlide].checked=true; }, 3000);

 .csslider { -moz-perspective: 1300px; -ms-perspective: 1300px; -webkit-perspective: 1300px; perspective: 1300px; display: inline-block; text-align: left; position: relative; margin-bottom: 22px; } .csslider > input { display: none; } .csslider > input:nth-of-type(10):checked ~ ul li:first-of-type { margin-left: -900%; } .csslider > input:nth-of-type(9):checked ~ ul li:first-of-type { margin-left: -800%; } .csslider > input:nth-of-type(8):checked ~ ul li:first-of-type { margin-left: -700%; } .csslider > input:nth-of-type(7):checked ~ ul li:first-of-type { margin-left: -600%; } .csslider > input:nth-of-type(6):checked ~ ul li:first-of-type { margin-left: -500%; } .csslider > input:nth-of-type(5):checked ~ ul li:first-of-type { margin-left: -400%; } .csslider > input:nth-of-type(4):checked ~ ul li:first-of-type { margin-left: -300%; } .csslider > input:nth-of-type(3):checked ~ ul li:first-of-type { margin-left: -200%; } .csslider > input:nth-of-type(2):checked ~ ul li:first-of-type { margin-left: -100%; } .csslider > input:nth-of-type(1):checked ~ ul li:first-of-type { margin-left: 0%; } .csslider > ul { position: relative; width: 100%; height: 100%; z-index: 1; font-size: 0; line-height: 0; background-color: #3a3a3a; border: 0px solid #3a3a3a; margin: 0 auto; padding: 0; overflow: hidden; white-space: nowrap; -moz-box-sizing: border-box; -webkit-box-sizing: border-box; box-sizing: border-box; } .csslider > ul > li { position: relative; display: inline-block; width: 100%; height: 100%; overflow: hidden; font-size: 15px; font-size: initial; line-height: normal; -moz-transition: all 0.5s cubic-bezier(0.4, 1.3, 0.65, 1); -o-transition: all 0.5s ease-out; -webkit-transition: all 0.5s cubic-bezier(0.4, 1.3, 0.65, 1); transition: all 0.5s cubic-bezier(0.4, 1.3, 0.65, 1); vertical-align: top; -moz-box-sizing: border-box; -webkit-box-sizing: border-box; box-sizing: border-box; white-space: normal; } .csslider > ul > li.scrollable { overflow-y: scroll; } .csslider > .navigation { position: absolute; bottom: -8px; left: 50%; z-index: 10; margin-bottom: -10px; font-size: 0; line-height: 0; text-align: center; -webkit-touch-callout: none; -webkit-user-select: none; -khtml-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none; } .csslider > .navigation > div { margin-left: -100%; } .csslider > .navigation label { position: relative; display: inline-block; cursor: pointer; border-radius: 50%; margin: 0 4px; padding: 4px; background: #3a3a3a; } .csslider > .navigation label:hover:after { opacity: 1; } .csslider > .navigation label:after { content: ''; position: absolute; left: 50%; top: 50%; margin-left: -6px; margin-top: -6px; background: #71ad37; border-radius: 50%; padding: 6px; opacity: 0; } .csslider > .arrows { -webkit-touch-callout: none; -webkit-user-select: none; -khtml-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none; } .csslider.inside .navigation { bottom: 10px; margin-bottom: 10px; } .csslider.inside .navigation label { border: 1px solid #7e7e7e; } .csslider > input:nth-of-type(1):checked ~ .navigation label:nth-of-type(1):after, .csslider > input:nth-of-type(2):checked ~ .navigation label:nth-of-type(2):after, .csslider > input:nth-of-type(3):checked ~ .navigation label:nth-of-type(3):after, .csslider > input:nth-of-type(4):checked ~ .navigation label:nth-of-type(4):after, .csslider > input:nth-of-type(5):checked ~ .navigation label:nth-of-type(5):after, .csslider > input:nth-of-type(6):checked ~ .navigation label:nth-of-type(6):after, .csslider > input:nth-of-type(7):checked ~ .navigation label:nth-of-type(7):after, .csslider > input:nth-of-type(8):checked ~ .navigation label:nth-of-type(8):after, .csslider > input:nth-of-type(9):checked ~ .navigation label:nth-of-type(9):after, .csslider > input:nth-of-type(10):checked ~ .navigation label:nth-of-type(10):after, .csslider > input:nth-of-type(11):checked ~ .navigation label:nth-of-type(11):after { opacity: 1; } .csslider > .arrows { position: absolute; left: -31px; top: 50%; width: 100%; height: 26px; padding: 0 31px; z-index: 0; -moz-box-sizing: content-box; -webkit-box-sizing: content-box; box-sizing: content-box; } .csslider > .arrows label { display: none; position: absolute; top: -50%; padding: 13px; box-shadow: inset 2px -2px 0 1px #3a3a3a; cursor: pointer; -moz-transition: box-shadow 0.15s, margin 0.15s; -o-transition: box-shadow 0.15s, margin 0.15s; -webkit-transition: box-shadow 0.15s, margin 0.15s; transition: box-shadow 0.15s, margin 0.15s; } .csslider > .arrows label:hover { box-shadow: inset 3px -3px 0 2px #71ad37; margin: 0 0px; } .csslider > .arrows label:before { content: ''; position: absolute; top: -100%; left: -100%; height: 300%; width: 300%; } .csslider.infinity > input:first-of-type:checked ~ .arrows label.goto-last, .csslider > input:nth-of-type(1):checked ~ .arrows > label:nth-of-type(0), .csslider > input:nth-of-type(2):checked ~ .arrows > label:nth-of-type(1), .csslider > input:nth-of-type(3):checked ~ .arrows > label:nth-of-type(2), .csslider > input:nth-of-type(4):checked ~ .arrows > label:nth-of-type(3), .csslider > input:nth-of-type(5):checked ~ .arrows > label:nth-of-type(4), .csslider > input:nth-of-type(6):checked ~ .arrows > label:nth-of-type(5), .csslider > input:nth-of-type(7):checked ~ .arrows > label:nth-of-type(6), .csslider > input:nth-of-type(8):checked ~ .arrows > label:nth-of-type(7), .csslider > input:nth-of-type(9):checked ~ .arrows > label:nth-of-type(8), .csslider > input:nth-of-type(10):checked ~ .arrows > label:nth-of-type(9), .csslider > input:nth-of-type(11):checked ~ .arrows > label:nth-of-type(10) { display: block; left: 0; right: auto; -moz-transform: rotate(45deg); -ms-transform: rotate(45deg); -o-transform: rotate(45deg); -webkit-transform: rotate(45deg); transform: rotate(45deg); } .csslider.infinity > input:last-of-type:checked ~ .arrows label.goto-first, .csslider > input:nth-of-type(1):checked ~ .arrows > label:nth-of-type(2), .csslider > input:nth-of-type(2):checked ~ .arrows > label:nth-of-type(3), .csslider > input:nth-of-type(3):checked ~ .arrows > label:nth-of-type(4), .csslider > input:nth-of-type(4):checked ~ .arrows > label:nth-of-type(5), .csslider > input:nth-of-type(5):checked ~ .arrows > label:nth-of-type(6), .csslider > input:nth-of-type(6):checked ~ .arrows > label:nth-of-type(7), .csslider > input:nth-of-type(7):checked ~ .arrows > label:nth-of-type(8), .csslider > input:nth-of-type(8):checked ~ .arrows > label:nth-of-type(9), .csslider > input:nth-of-type(9):checked ~ .arrows > label:nth-of-type(10), .csslider > input:nth-of-type(10):checked ~ .arrows > label:nth-of-type(11), .csslider > input:nth-of-type(11):checked ~ .arrows > label:nth-of-type(12) { display: block; right: 0; left: auto; -moz-transform: rotate(225deg); -ms-transform: rotate(225deg); -o-transform: rotate(225deg); -webkit-transform: rotate(225deg); transform: rotate(225deg); } /*#region MODULES */ /*#endregion */

 <div class="csslider"> <input type="radio" name="slides" id="slides_1" checked /> <input type="radio" name="slides" id="slides_2" /> <input type="radio" name="slides" id="slides_3" /> <input type="radio" name="slides" id="slides_4" /> <input type="radio" name="slides" id="slides_N" /> <ul> <li>Content of slide 1</li> <li>Content of slide 2</li> <li>Content of slide 3</li> <li>Content of slide 4</li> <li>Content of slide N</li> </ul> <div class="arrows"> <label for="slides_1"></label> <label for="slides_2"></label> <label for="slides_3"></label> <label for="slides_4"></label> <label for="slides_N"></label> <label for="slides_1" class="goto-first"></label> <label for="slides_N" class="goto-last"></label> </div> <div class="navigation"> <div> <label for="slides_1"></label> <label for="slides_2"></label> <label for="slides_3"></label> <label for="slides_4"></label> <label for="slides_N"></label> </div> </div> </div>