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Add improvements to CSS progress() demo #314

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Add improvements to CSS progress() demo #314

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52 changes: 42 additions & 10 deletions css-progress/index.css
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Original file line number Diff line number Diff line change
Expand Up @@ -12,19 +12,27 @@ body {
display: flex;
justify-content: center;
align-items: center;
--custom-minwidth: 320px;
--custom-maxwidth: 1200px;
}

article {
min-width: var(--custom-minwidth);
max-width: var(--custom-maxwidth);
position: relative;
min-width: 320px;
max-width: 1200px;
width: 70%;
height: 600px;
border: 3px solid black;
}

.progress {
width: calc((progress(var(--container-width), 320, 1200)) * 100%);
width: calc(
progress(
var(--container-width),
var(--custom-minwidth),
var(--custom-maxwidth)
) * 100%
);
height: 4px;
background-color: red;
position: absolute;
Expand All @@ -37,7 +45,11 @@ article {
inset: 0;
background-image: url(https://mdn.github.io/shared-assets/images/examples/wide-background.jpg);
background-position-x: calc(
progress(var(--container-width), 320, 1200) * 100%
progress(
var(--container-width),
var(--custom-minwidth),
var(--custom-maxwidth)
) * 100%
);
}

Expand All @@ -46,13 +58,33 @@ article {
inset: 0;
padding: 20px;
background-color: rgb(
calc(255 * progress(var(--container-width), 320, 1200))
calc(255 * progress(var(--container-width), 320, 1200)) 255 / 0.5
calc(
255 *
progress(
var(--container-width),
var(--custom-minwidth),
var(--custom-maxwidth)
)
)
calc(
255 *
progress(
var(--container-width),
var(--custom-minwidth),
var(--custom-maxwidth)
)
)
255 / 0.5
);
opacity: calc(
(
progress(
var(--container-width),
var(--custom-minwidth),
var(--custom-maxwidth)
) / 2
) + 0.5
);
opacity: calc((progress(var(--container-width), 320, 1200) / 2) + 0.5);

/* Works without calc */
/* opacity: progress(var(--container-width), 320, 1200); */
}

.content h1,
Expand Down
4 changes: 2 additions & 2 deletions css-progress/index.js
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Original file line number Diff line number Diff line change
@@ -1,10 +1,10 @@
const articleElem = document.querySelector("article");

function setContainerWidth() {
const clientRect = articleElem.getBoundingClientRect();
const clientWidth = articleElem.getBoundingClientRect().width;
articleElem.style.setProperty(
"--container-width",
Math.floor(clientRect.width)
`${Math.floor(clientWidth)}px`
);
}

Expand Down