Slider doesn't start - CSS only - css

Question

I create a slider with some logos, but the animation doesn't start. I create it with only css but it remains blocked. I check few time the code but I can find the answer.
The slider should scroll and change the logo, but it doesn't work.
I think that it could be also created with javascript but I'm not sure how to do it.
Can someone help me?
.slider {
width: 960px;
height: 100px;
overflow: hidden;
position: relative;
margin: auto;
}
.slider::before,
.slider::after {
content: "";
position: absolute;
width: 200px;
height: 100px;
background: linear-gradient(to right, width 0%, rgba(255, 255, 255, 0) 100%);
z-index: 2;
}
.slider::before {
top: 0;
left: 0;
}
.slider::after {
top: 0;
right: 0;
transform: rotateZ(180deg);
}
.slider .slide img {
width: 200px;
height: 100px;
}
.slider .slider-track {
display: flex;
width: calc(200px * 20);
animation: scroll 4s ease 3s infinite linear;
}
#keyframes scroll {
0% {
transform: translateX(0);
}
100% {
transform: translateX(calc(-200px * 10));
}
}
<div class="slider">
<div class="slider-track">
<div class="slide">
<img src="./1.png">
</div>
<div class="slide">
<img src="./2.png">
</div>
<div class="slide">
<img src="./3.png">
</div>
<div class="slide">
<img src="./4.png">
</div>
<div class="slide">
<img src="./5.png">
</div>
<div class="slide">
<img src="./6.png">
</div>
<div class="slide">
<img src="./7.png">
</div>
<div class="slide">
<img src="./8.png">
</div>
<div class="slide">
<img src="./9.png">
</div>
<div class="slide">
<img src="./10.png">
</div>
</div>
</div>

Answer 1

Your animation property is wrong.
use these properties instead. This is more readable and it makes it easier to avoid similar mistakes:
animation-name
animation-duration
animation-timing-function
animation-delay
animation-iteration-count
animation-direction
animation-fill-mode
animation-play-state
https://www.w3schools.com/cssref/css3_pr_animation.asp
.slider {
width: 960px;
height: 100px;
overflow: hidden;
position: relative;
margin: auto;
}
.slider::before,
.slider::after {
content: "";
position: absolute;
width: 200px;
height: 100px;
background: linear-gradient(to right, width 0%, rgba(255, 255, 255, 0) 100%);
z-index: 2;
}
.slider::before {
top: 0;
left: 0;
}
.slider::after {
top: 0;
right: 0;
transform: rotateZ(180deg);
}
.slider .slide img {
width: 200px;
height: 100px;
}
.slider .slider-track {
display: flex;
width: calc(200px * 20);
animation: scrolll 4s ease;
}
#keyframes scrolll {
0% {
transform: translateX(0);
}
100% {
transform: translateX(calc(-200px * 10));
}
}
<div class="slider">
<div class="slider-track">
<div class="slide">
<img src="./1.png">
</div>
<div class="slide">
<img src="./2.png">
</div>
<div class="slide">
<img src="./3.png">
</div>
<div class="slide">
<img src="./4.png">
</div>
<div class="slide">
<img src="./5.png">
</div>
<div class="slide">
<img src="./6.png">
</div>
<div class="slide">
<img src="./7.png">
</div>
<div class="slide">
<img src="./8.png">
</div>
<div class="slide">
<img src="./9.png">
</div>
<div class="slide">
<img src="./10.png">
</div>
</div>
</div>