How can you customize a slider with pure CSS?

Question

css

Greetings, please tell me how to adapt the slider for mobile devices, the slider itself is made on pure CSS.

<div class="slider">
  <input type="radio" name="switch" id="btn1" checked>
  <input type="radio" name="switch" id="btn2">
  <input type="radio" name="switch" id="btn3">
  
  <div class="switch">
    <label for="btn1"></label>
    <label for="btn2"></label>
    <label for="btn3"></label>
  </div>
  
  <div class="slider-inner">
    <div class="slides">
      <img src="https://www.roscosmos.ru/media/img/foto/2018/wallpapers/0014.jpg"/>
      <img src="http://conceptartworld.com/wp-content/uploads/2013/10/Mathieu_Latour-Duhaime_Concept_Art_Thief_01-680x340.jpg"/>
      <img src="http://conceptartworld.com/wp-content/uploads/2013/10/Mathieu_Latour-Duhaime_Concept_Art_Thief_07-680x340.jpg"/>
    </div>
  </div>
  
</div>

.slider {
  position: relative;
  width: 680px;
  margin: 50px auto;
  box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.75);
}

.slider input[name="switch"] {
  display: none;
}

.switch {
  position: absolute;
  left: 0;
  bottom: -40px;
  text-align: center;
  width: 100%;
}

.switch label {
  display: inline-block;
  width: 8px;
  height: 8px;
  cursor: pointer;
  margin: 0 3px;
  box-shadow: 0 0 2px 0 rgba(0, 0, 0, .8);
  border-radius: 50%;
  border: 5px solid #2f363c;
  background-color: #738290;
}

#btn1:checked~.switch label[for="btn1"] {
  background-color: white;
}

#btn2:checked~.switch label[for="btn2"] {
  background-color: white;
}

#btn3:checked~.switch label[for="btn3"] {
  background-color: white;
}

.slider-inner {
  overflow: hidden;
}

.slides {
  width: 300%;
  transition: all 0.5s;
}

.slides img {
  width: 680px;
  height: 320px;
  float: left;
}

#btn1:checked~slider-inner slides {
  transform: translate(0);
}

#btn2:checked~.slider-inner .slides {
  transform: translate(-680px);
}

#btn3:checked~.slider-inner .slides {
  transform: translate(-1360px);
}

Demo where I tried to create adaptive - https://codepen.io/kocsten/pen/OJLpVPw

Answer 1

shit, something like that