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HTML

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HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.

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Insecure Resource

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CSS

About CSS Preprocessors

CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

Vendor Prefixing

About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

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JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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Packages

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HTML 

              
                <input type="checkbox" id="view-cells" />
<label for="view-cells">
  View Cells
</label>
<input type="checkbox" id="more" />
<label for="more">
  More rotation!
</label>
<div class="hover-img-container">
  <div class="top-left">top left</div>
	<div class="top-right">top right</div>
	<div class="bottom-left">bottom left</div>
	<div class="bottom-right">bottom right</div>
	<div class="top-middle">top middle</div>
	<div class="bottom-middle">bottom middle</div>
	<img src="https://i.imgur.com/sVpcrkO.jpeg" alt="Close up of a happy red fox laying down in the woods" />
</div>
!

CSS 

              
                /* Center placement & color */
html { display: grid; height: 100%; place-items: center; background-color: #080011; color: white; font-family: system-ui; padding: 20px; box-sizing: border-box }

:root {
  /* Make a variable for how much you want
  the image to rotate by */
  --rotation: 5deg
}

.hover-img-container {
  /* make sure inner absolutely positioned 
  elements is relative to this container */
	position: relative;
	width: 500px;
	height: 300px;
  /* This property determines the distance between
  the camera and the z-axis to give the 3d rotations
  on the image some perspective
  https://developer.mozilla.org/en-US/docs/Web/CSS/perspective */
  perspective: 1000px;
  /* zoom entire thing on hover */
  transition: transform .2s;
  &:hover {
    transform: scale(1.02)
  }
}
.hover-img-container img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: center;
	border-radius: 12px;
  /* Make sure the image transtions smoothly between transforms */
  transition: transform .7s cubic-bezier(0,0,0,1);
}

.hover-img-container div {
  /* Start the cells with a size */
  position: absolute;
  width: 50%;
  height: 50%;
  z-index: 2;
}
.hover-img-container {
  .top-left {
    /* position the cell */
    top: 0;
    left: 0;
    /* When hovering over this cell, 
    select the image after this cell and apply the rotation */
    &:hover ~ img {
      /* rotate3d(x, y, z, angle) 
      https://developer.mozilla.org/en-US/docs/Web/CSS/transform-function/rotate3d */
      transform: rotate3d(-1, 1, 0, var(--rotation))
    }
  }
  /* Do the same for the rest of the cells */
  .top-right {
    top: 0;
    right: 0;
    &:hover ~ img {
      transform: rotate3d(-1, -1, 0, var(--rotation))
    }
  }
  .bottom-left {
    bottom: 0;
    left: 0;
    &:hover ~ img {
      transform: rotate3d(1, 1, 0, var(--rotation))
    }
  }
  .bottom-right {
    bottom: 0;
    right: 0;
    &:hover ~ img {
      transform: rotate3d(1, -1, 0, var(--rotation)) 
    }
  }
  /* For the top and bottom middle cells, i removed the width
  and relied on left & right anchoring (inset property)*/
  .top-middle {
    top: 0;
    bottom: 50%;
    inset-inline: 35% !important;
    width: unset;
    height: unset;
    &:hover ~ img {
      transform: rotate3d(-1, 0, 0, var(--rotation))
    }
  }
  .bottom-middle {
    top: 50%;
    bottom: 0;
    inset-inline: 35% !important;
    width: unset;
    height: unset;
    &:hover ~ img {
      transform: rotate3d(1, 0, 0, var(--rotation))
    }
  }  
}

/* unrelated just for demo */
.hover-img-container {
  margin-top: 5px;
  filter: drop-shadow(0 20px 80px #ff6b0040);
}
label {
  margin-inline-end: 10px;
}
.hover-img-container div {
  opacity: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  transition: opacity .4s;
}
#view-cells:checked ~ .hover-img-container div {
  background: rgba(100,100,150,0.4);
  border: 1px solid;
  opacity: 1;
}
#more:checked ~ .hover-img-container {
  --rotation: 50deg;
}
!

JS
!
999px

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