body{
  margin: 0;
  padding: 0;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #23E3C9;
}

.slider{
  width: 500px;
  height: 300px;
  border-radius: 10px;
  overflow: hidden;
}

.slides{
  width: 500%;
  height: 300px;
  display: flex;
}

.slides input{display: none;}

.slide{width: 20%; transition: 2s;}

.slide img{width: 500px; height: 300px;}

/*css for manual slide navigation*/

.navigation-manual{
  position: absolute;
  width: 500px;
  margin-top: -40px;
  display: flex;
  justify-content: center;
}

.manual-btn{
  border: 2px solid #40D3DC;
  padding: 5px;
  border-radius: 10px;
  cursor: pointer;
  transition: 1s;
}

.manual-btn:not(:last-child){
  margin-right: 40px;
}

.manual-btn:hover{background: #40D3DC;}

#radio1:checked ~ .first{margin-left: 0;}

#radio2:checked ~ .first{margin-left: -20%;}

#radio3:checked ~ .first{margin-left: -40%;}

#radio4:checked ~ .first{margin-left: -60%;}

#radio5:checked ~ .first{margin-left: -80%;}

/*css for automatic navigation*/

.navigation-auto{
  position: absolute;
  display: flex;
  width: 500px;
  justify-content: center;
  margin-top: 260px;
}

.navigation-auto div{
  border: 2px solid #40D3DC;
  padding: 5px;
  border-radius: 10px;
  transition: 1s;
}

.navigation-auto div:not(:last-child){
  margin-right: 40px;
}

#radio1:checked ~ .navigation-auto .auto-btn1{background: #40D3DC;}

#radio2:checked ~ .navigation-auto .auto-btn2{background: #40D3DC;}

#radio3:checked ~ .navigation-auto .auto-btn3{background: #40D3DC;}

#radio4:checked ~ .navigation-auto .auto-btn4{background: #40D3DC;}

#radio5:checked ~ .navigation-auto .auto-btn5{background: #40D3DC;}