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Create a layered CSS progressive blur (top or bottom) using multiple backdrop-filter masks for depth and softness. Use when asked for “progressive blur”, “gradient blur overlay”, or stepped blur masks that fade from an edge of the viewport.
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SOC 職業分類に基づく
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| name | progressive-blur |
| description | Create a layered CSS progressive blur (top or bottom) using multiple backdrop-filter masks for depth and softness. Use when asked for “progressive blur”, “gradient blur overlay”, or stepped blur masks that fade from an edge of the viewport. |
<body>..gradient-blur element near the top of the DOM.z-index to sit above content but below modals.<div class="gradient-blur">
<div></div><div></div><div></div><div></div><div></div><div></div>
</div>
<style>
.gradient-blur {
position: fixed;
z-index: 5;
inset: 0 0 auto 0;
height: 12%;
pointer-events: none;
}
.gradient-blur > div,
.gradient-blur::before,
.gradient-blur::after {
position: absolute;
inset: 0;
}
.gradient-blur::before {
content: "";
z-index: 1;
backdrop-filter: blur(0.5px);
mask: linear-gradient(to top,
rgba(0, 0, 0, 0) 0%,
rgba(0, 0, 0, 1) 12.5%,
rgba(0, 0, 0, 1) 25%,
rgba(0, 0, 0, 0) 37.5%);
}
.gradient-blur > div:nth-of-type(1) {
z-index: 2;
backdrop-filter: blur(1px);
mask: linear-gradient(to top,
rgba(0, 0, 0, 0) 12.5%,
rgba(0, 0, 0, 1) 25%,
rgba(0, 0, 0, 1) 37.5%,
rgba(0, 0, 0, 0) 50%);
}
.gradient-blur > div:nth-of-type(2) {
z-index: 3;
backdrop-filter: blur(2px);
mask: linear-gradient(to top,
rgba(0, 0, 0, 0) 25%,
rgba(0, 0, 0, 1) 37.5%,
rgba(0, 0, 0, 1) 50%,
rgba(0, 0, 0, 0) 62.5%);
}
.gradient-blur > div:nth-of-type(3) {
z-index: 4;
backdrop-filter: blur(4px);
mask: linear-gradient(to top,
rgba(0, 0, 0, 0) 37.5%,
rgba(0, 0, 0, 1) 50%,
rgba(0, 0, 0, 1) 62.5%,
rgba(0, 0, 0, 0) 75%);
}
.gradient-blur > div:nth-of-type(4) {
z-index: 5;
backdrop-filter: blur(8px);
mask: linear-gradient(to top,
rgba(0, 0, 0, 0) 50%,
rgba(0, 0, 0, 1) 62.5%,
rgba(0, 0, 0, 1) 75%,
rgba(0, 0, 0, 0) 87.5%);
}
.gradient-blur > div:nth-of-type(5) {
z-index: 6;
backdrop-filter: blur(16px);
mask: linear-gradient(to top,
rgba(0, 0, 0, 0) 62.5%,
rgba(0, 0, 0, 1) 75%,
rgba(0, 0, 0, 1) 87.5%,
rgba(0, 0, 0, 0) 100%);
}
.gradient-blur > div:nth-of-type(6) {
z-index: 7;
backdrop-filter: blur(32px);
mask: linear-gradient(to top,
rgba(0, 0, 0, 0) 75%,
rgba(0, 0, 0, 1) 87.5%,
rgba(0, 0, 0, 1) 100%);
}
.gradient-blur::after {
content: "";
z-index: 8;
backdrop-filter: blur(64px);
mask: linear-gradient(to top,
rgba(0, 0, 0, 0) 87.5%,
rgba(0, 0, 0, 1) 100%);
}
</style>
<div class="gradient-blur">
<div></div><div></div><div></div><div></div><div></div><div></div>
</div>
<style>
.gradient-blur {
position: fixed;
z-index: 5;
inset: auto 0 0 0;
height: 65%;
pointer-events: none;
}
.gradient-blur > div,
.gradient-blur::before,
.gradient-blur::after {
position: absolute;
inset: 0;
}
.gradient-blur::before {
content: "";
z-index: 1;
backdrop-filter: blur(0.5px);
mask: linear-gradient(to bottom,
rgba(0, 0, 0, 0) 0%,
rgba(0, 0, 0, 1) 12.5%,
rgba(0, 0, 0, 1) 25%,
rgba(0, 0, 0, 0) 37.5%);
}
.gradient-blur > div:nth-of-type(1) {
z-index: 2;
backdrop-filter: blur(1px);
mask: linear-gradient(to bottom,
rgba(0, 0, 0, 0) 12.5%,
rgba(0, 0, 0, 1) 25%,
rgba(0, 0, 0, 1) 37.5%,
rgba(0, 0, 0, 0) 50%);
}
.gradient-blur > div:nth-of-type(2) {
z-index: 3;
backdrop-filter: blur(2px);
mask: linear-gradient(to bottom,
rgba(0, 0, 0, 0) 25%,
rgba(0, 0, 0, 1) 37.5%,
rgba(0, 0, 0, 1) 50%,
rgba(0, 0, 0, 0) 62.5%);
}
.gradient-blur > div:nth-of-type(3) {
z-index: 4;
backdrop-filter: blur(4px);
mask: linear-gradient(to bottom,
rgba(0, 0, 0, 0) 37.5%,
rgba(0, 0, 0, 1) 50%,
rgba(0, 0, 0, 1) 62.5%,
rgba(0, 0, 0, 0) 75%);
}
.gradient-blur > div:nth-of-type(4) {
z-index: 5;
backdrop-filter: blur(8px);
mask: linear-gradient(to bottom,
rgba(0, 0, 0, 0) 50%,
rgba(0, 0, 0, 1) 62.5%,
rgba(0, 0, 0, 1) 75%,
rgba(0, 0, 0, 0) 87.5%);
}
.gradient-blur > div:nth-of-type(5) {
z-index: 6;
backdrop-filter: blur(16px);
mask: linear-gradient(to bottom,
rgba(0, 0, 0, 0) 62.5%,
rgba(0, 0, 0, 1) 75%,
rgba(0, 0, 0, 1) 87.5%,
rgba(0, 0, 0, 0) 100%);
}
.gradient-blur > div:nth-of-type(6) {
z-index: 7;
backdrop-filter: blur(32px);
mask: linear-gradient(to bottom,
rgba(0, 0, 0, 0) 75%,
rgba(0, 0, 0, 1) 87.5%,
rgba(0, 0, 0, 1) 100%);
}
.gradient-blur::after {
content: "";
z-index: 8;
backdrop-filter: blur(64px);
mask: linear-gradient(to bottom,
rgba(0, 0, 0, 0) 87.5%,
rgba(0, 0, 0, 1) 100%);
}
</style>
to top ↔ to bottom..gradient-blur height percentage.backdrop-filter needs content behind it; it will not blur a flat background.pointer-events: none stays to avoid blocking clicks.