Вёрстка слайдера | Автоматическая прокрутка слайдера

    .sliderC2 {
        width: 986px;
        height: 300px;
        border: 0px solid #;
        position: relative;
        text-align: center;
        overflow: hidden;
    }
 
    .sliderC2 > input {
        display: none;
    }
 
    .sliderC2 > input + label,
    .sliderC2 > input + label + label {
        display: none;
    }
 
 
    .sliderC2 > input:checked + label,
    .sliderC2 > input:checked + label + label {
        display: block;
        width: 50px;
        height: 50px;
 
        opacity: 0.4;
        transition: opacity 0.8s ease-out 0s;
 
        cursor: pointer;
 
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        z-index: 100;
    }
 
    .sliderC2 > input:checked + label:hover,
    .sliderC2 > input:checked + label + label:hover {
        opacity: 0.6;
    }
 
 
    .sliderC2 > input:checked + label {
        left: 0px;
        background: url('https://lh3.googleusercontent.com/-tacAA4lVYgc/VeVDqFrDRRI/AAAAAAAAAT4/RBongekAUqI/s800-Ic42/prev.png')
    }
 
    .sliderC2 > input:checked + label + label {
        right: 0px;
        background: url('https://lh3.googleusercontent.com/-gy6RMZnCdAc/VeVDqJF1S5I/AAAAAAAAAT0/D4nN8T9RGro/s800-Ic42/next.png')
    }
 
 
    .sliderC2 > div {
        position: absolute;
        top: 0px;
        left: 0px;
        bottom: 0px;
        z-index: 0;
        width: 1000%;
        text-align: left;
        transition: left 800ms cubic-bezier(0.77, 0, 0.175, 1) 0s;        
    }
 
    .sliderC2 > input:nth-of-type(2):checked ~ div { left: -100%; }
    .sliderC2 > input:nth-of-type(3):checked ~ div { left: -200%; }
    .sliderC2 > input:nth-of-type(4):checked ~ div { left: -300%; }
    .sliderC2 > input:nth-of-type(5):checked ~ div { left: -400%; }
    .sliderC2 > input:nth-of-type(6):checked ~ div { left: -500%; }
    .sliderC2 > input:nth-of-type(7):checked ~ div { left: -600%; }
    .sliderC2 > input:nth-of-type(8):checked ~ div { left: -700%; }
    .sliderC2 > input:nth-of-type(9):checked ~ div { left: -800%; }
    .sliderC2 > input:nth-of-type(10):checked ~ div { left: -900%; }
 
    .sliderC2 > div > div {
        display: inline-block;
        position: relative;
    }
 
    .sliderC2 > div > div > p {
        position: absolute;
        top: 0px;
        left: 0px;
        right: 0px;
        text-align: center;
        color: #fff;
        text-shadow: 1px 1px 2px #000;
    }

.wrapper{
  width:400px;
  height:200px;
  border:1px solid black;
  position: relative;
  margin:0 auto;
  overflow: hidden;
}
.slider{
  position: absolute;
  height:100%;
  top:0;
  left:0;
  width:1200px;
  animation: 4s slider linear infinite alternate;
}
.block{
  width:400px;
  height:100%;
  border:1px solid black;
  box-sizing: border-box;
  float:left;
  text-align: center;
  line-height: 200px;
}
@keyframes slider{
  0%{
    left:0px;
  }
  50%{
    left:-400px;
  }
  100%{
    left:-800px;
  }
}

.wrapper{
  width:400px;
  height:200px;
  border:1px solid black;
  position: relative;
  margin:0 auto;
  overflow: hidden;
}
.slider{
  position: absolute;
  height:100%;
  top:0;
  left:0;
  width:1200px;
  animation: 4s slider linear infinite alternate;
}
.block{
  width:400px;
  height:100%;
  border:1px solid black;
  box-sizing: border-box;
  float:left;
  text-align: center;
  line-height: 200px;
}
@keyframes slider{
  0%{
    left:0px;
  }
  50%{
    left:-400px;
  }
  100%{
    left:-800px;
  }
}

.wrapper{
  width:986px;
  height:300px;
  border:1px solid black;
  position: relative;
  margin:0 auto;
  overflow: hidden;
}
.slider{
  position: absolute;
  height:100%;
  top:0;
  left:0;
  width:1200px;
  animation: 4s slider linear infinite alternate;
}
.block{
  width:986px;
  height:100%;
  border:1px solid black;
  box-sizing: border-box;
  float:left;
  text-align: center;
  line-height: 200px;
}
@keyframes slider{
  0%{
    left:0px;
  }
  50%{
    left:-400px;
  }
  100%{
    left:-800px;
  }
}

.wrapper{
  width:986px;
}
.slider{
  width:2958px;
}
.block{
  width:986px;
}
@keyframes slider{
  0%{
    left:0px;
  }
  50%{
    left:-986px;
  }
  100%{
    left:-1972px;
  }
}