.slider{
    width: 60%;
    margin: auto;
    overflow: hidden;
}
.slider ul{
    display: flex;
    padding: 0;
    width: 800%;
    animation: cambio 30s infinite;
}
.slider li{
    list-style: none;
     width: 100%;
}
.slider img{
    width: 100%;
}
.slider img:hover{
    transform: scale(1.2);
    transition: all 300ms;
}
/*
a:link, a:visited {
		    background-color: gray;
		  	color: white;
		    padding: 10px 10px;
		    text-align: center;
		    text-decoration: none;
		    display: inline-block;
		}
		a:hover, a:active {
		    background-color: black;
		}
		*/
@keyframes cambio{
    0%{margin-left:0;}
    10%{margin-left: -100%;}
    15%{margin-left: -200%;}
    20%{margin-left: -300%;}
    25%{margin-left: -400%;}
    30%{margin-left: -500%;}
    35%{margin-left: -600%;}
    40%{margin-left: -700%;}
}