slider.css

/*body{
  /*margin: 0;*!/
  padding: 0;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #fff;
}*/


.slider{
  padding: 0.1rem;
  width: 1500x;
  height: 500px;
  border-radius: 10px;
  overflow: hidden;
  align-content: center;
}

.slides{
  width: 508%;
  height: 500px;
  display: flex;
}

.slides input{
  display: none;
}

.slide{
  width: 90rem;
  transition: 2s;
}

.slide img{
	display: flex;
	display: 16/9;
	overflow-x: none;
	scroll-snap-type: x mandatory;
	scroll-behaviour: smooth;
	box-shadow: 0px 1.5rem 3rem -0.75rem hsla(0, 0%, 0%, 0.25);
	border-radius: 0.5rem;
	flex: 1 0 100%;
	scroll-snap-align: right;
	object-fit: cover;
	max-width: 89rem;
	
}


/*css for manual slide navigation*/

.navigation-manual{
  position: absolute;
  width: 1400px;
  margin-top: -180px;
  display: flex;
  justify-content: center;
}

.manual-btn{
  border: 2px solid #666666;
  padding: 5px;
  border-radius: 10px;
  cursor: pointer;
  transition: 1s;
}

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

.manual-btn:hover{
  background: #666666;
}

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

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

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

/*css for automatic navigation*/

.navigation-auto{
  position: absolute;
  display: flex;
  width: 1400px;
  justify-content: center;
  margin-top: 320px;
}

.navigation-auto div{
  border: 2px solid #666666;
  padding: 5px;
  border-radius: 10px;
  transition: 1s;
}

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

#radio1:checked ~ .navigation-auto .auto-btn1{
  background: #666666;
}

#radio2:checked ~ .navigation-auto .auto-btn2{
  background: #666666;
}

#radio3:checked ~ .navigation-auto .auto-btn3{
  background: #666666;
}