.slider{
  margin: 0 auto;
  width: 100%;
  height: 530px;
  overflow: hidden;
}

.slides{
  width: 400px;
  height: 530px;
  display: flex;
}

.slides input{
  display: none;
}

.slide{
  display: flex;
  justify-content: center;
  align-items: center;
  width: 400%;
  position: relative;
  transition: 2s;
}

.slide img{
  width: 100vw;
}

.manual-navigation{
  position: absolute;
  width: 100%;
  margin-top: -40px;
  display: flex;
  justify-content: center;
}

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

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

.manual-btn:hover{
  background-color: #fff;
}

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

#radio2:checked ~ .first{
  margin-left: -100vw;
}

#radio3:checked ~ .first{
  margin-left: -200vw;
}

#radio4:checked ~ .first{
  margin-left: -300vw;
}

.navigation-auto div{
  border: 2px solid #20a6ff;
  padding: 5px;
  border-radius: 10px;
  cursor: pointer;
  transition: 1s;
}

.navigation-auto{
  position: absolute;
  width: 100%;
  margin-top: 490px;
  display: flex;
  justify-content: center;
}

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

#radio1:checked ~ .navigation-auto .auto-btn1{
  background-color: #fff;
}

#radio2:checked ~ .navigation-auto .auto-btn2{
  background-color: #fff;
}

#radio3:checked ~ .navigation-auto .auto-btn3{
  background-color: #fff;
}

#radio4:checked ~ .navigation-auto .auto-btn4{
  background-color: #fff;
}