Slider code in email - Want it to work for Gmail - html

Question

I have asked questions regarding this code before. It is working fine. The only issue is that I would like to use it so the it works in the Gmail web client. It seems to work on Gmail mobile but not desktop and normal online HTML works. I know email clients limit CSS functionality but any help in getting functionality like this working would be great.
WORKING SNIPPET:
body {
margin: 0;
padding: 0;
}
.container {
display:flex;
width:600px;
flex-wrap:wrap;
justify-content:space-between;
}
.slider-holder {
order:-1;
width: 600px;
height: 280px;
background-color: yellow;
text-align: center;
overflow: hidden;
}
.image-holder {
width: 3000px;
background-color: red;
height: 280px;
clear: both;
position: relative;
transition: left 7000s; /*Use a big value to block the image change*/
left: 0;
}
.slider-image {
float: left;
margin: 0px;
padding: 0px;
position: relative;
}
a[href="#slider-image-0"]:hover~.slider-holder .image-holder {
left: 0.5px; /*Yes it's not 0px here, we need something different from the initial state to be able to trigger the transition (Yes I know it's not intuitive ..)*/
transition: left 1s;
}
a[href="#slider-image-1"]:hover~.slider-holder .image-holder {
left: -600px;
transition: left 1s;
}
a[href="#slider-image-2"]:hover~.slider-holder .image-holder {
left: -1200px;
transition: left 1s;
}
a[href="#slider-image-3"]:hover~.slider-holder .image-holder {
left: -1800px;
transition: left 1s;
}
a[href="#slider-image-4"]:hover~.slider-holder .image-holder {
left: -2400px;
transition: left 1s;
}
.button-holder>a>img {
padding-left: 35px;
padding-right: 35px;
}
<div class="container">
<img src="https://via.placeholder.com/70x70" alt="" width="70" style="border-width:0 !important;outline-style:none !important;">
<img src="https://via.placeholder.com/70x70" alt="" width="70" style="border-width:0 !important;outline-style:none !important;">
<img src="https://via.placeholder.com/70x70" alt="" width="70" style="border-width:0 !important;outline-style:none !important;">
<img src="https://via.placeholder.com/70x70" alt="" width="70" style="border-width:0 !important;outline-style:none !important;">
<img src="https://via.placeholder.com/70x70" alt="" width="70" style="border-width:0 !important;outline-style:none !important;">
<div class="slider-holder">
<div class="image-holder">
<img src="https://via.placeholder.com/600x280/ff0000" class="slider-image" />
<img src="https://via.placeholder.com/600x280/00ff00" class="slider-image" />
<img src="https://via.placeholder.com/600x280/f0f0f0" class="slider-image" />
<img src="https://via.placeholder.com/600x280/0000ff" class="slider-image" />
<img src="https://via.placeholder.com/600x280" class="slider-image" />
</div>
</div>
</div>

Answer 1

You should use table layout, inline css and avoid using images as replace of content. Here is great guide: https://litmus.com/blog/a-guide-to-css-inlining-in-email

Answer 2

here is the list of CSS supported by email clients link.
Try to add you CSS classes in head section of HTML.