html ,body{
    width: 100%;
    height: 100%;
    padding: 0;
    margin: 0;
}
slider{
    display: block;
    width: 100%;
    height: 1%;
    background-color: #6C757D;
    overflow: hidden;
    position: absolute;
}
slider > *{
    position: absolute;
    display: block;
    width: 100%;
    height: 1%;
    background: #2F74D0;
    animation: slide 12s infinite;
    overflow: hidden;
}
slide:nth-child(1){
    left: 0%;
    animation-delay: -1s;
    background-size: cover;
    background-position: center;
}

slide:nth-child(2){
    animation-delay: 2s;
    background-size: cover;
    background-position: center;
}
slide:nth-child(3){
    animation-delay: 5s;
    background-size: cover;
    background-position: center;
}
slide:nth-child(4){
    animation-delay: 8s;
    background-size: cover;
    background-position: center;
}
slide p{
    font-family: cursive;
    font-size: 70px;
    text-align: center;
    display: inline-block;
    width: 100%;
    margin-top: 340px;
    color: #fff;
}
@keyframes slide{
    0%{left: 100%; width: 100%;}
    5%{left: 0%;}
    25%{left: 0%;}
    30%{left: -100%; width: 100%;}
    30.0001%{left: -100%; width: 0%;}
    100%{left: 100%; width: 0%;}
}