.slider{
	/*margin: 0 auto;*/
	margin-left:calc(50% - 50vw);
	/*width: 800px;*/
	width:100vw;
	height:400px;
	overflow: hidden;
	position:relative;/*new*/
	
}
.slides{
	width: 400%;
	height:400px;
	display: flex;
}
.slides input {
	display: none;
}
.slide{
	width: 25%;
	position:relative;
	transition: 1.5s;
}
.slide img{
	width:100%;
	height:400px;
	object-fit:cover;
	display:block;
}
.nav-manual{
	position: absolute;
	width: 100%;
	bottom: 20px;
	display: flex;
	justify-content: center;
	gap: 40px;
}
.manual-bttn{
	border: 2px solid red;
	padding: 5px;
	border-radius: 10px;
	cursor: pointer;
	transition: 1s;
}
.manual-bttn:not(:last-child){
	margin-right: 40px;
}
.manual-bttn:hover{
	background-color:white;
}
#radioss-1:checked ~ .first{
	margin-left: 0;
	
}
#radioss-2:checked ~ .first{
	margin-left: -25%;
	
}
#radioss-3:checked ~ .first{
	margin-left: -50%;
	
}
#radioss-4:checked ~ .first{
	margin-left: -75%;
	
}
.nav-auto div{
	border: 2px solid red;
	padding: 5px;
	border-radius: 10px;
	cursor: pointer;
	transition: 1s;
}
.nav-auto{
	position: absolute;
	width: 100%;
	bottom: 20px;
	display: flex;
	justify-content: center;
	gap: 40px;
}
.nav-auto div:not(:last-child){
	margin-right: 40px;
}
#radioss-1:checked ~ .nav-auto .btn-auto1{
	background-color: white;
	
}
#radioss-2:checked ~ .nav-auto .btn-auto2{
	background-color: white;
	
}
#radioss-3:checked ~ .nav-auto .btn-auto3{
	background-color: white;
	
}
#radioss-4:checked ~ .nav-auto .btn-auto4{
	background-color: white;
	
}