09揺れ

短い keyframes で写真が左右に数ピクセルすばやく振動し、視線を引きつける。

使いどころ限定セールバッジ付きの商品画像、注意を引くバナー写真

@keyframestranslateX0.4초

<main class="stage">
  <figure class="photo is-demo" tabindex="0">
    <span class="photo__pic" aria-hidden="true">
      <span class="photo__sun"></span>
      <span class="photo__hill"></span>
      <span class="photo__badge">SALE</span>
    </span>
    <figcaption class="photo__cap">期間限定セール</figcaption>
  </figure>
</main>

@use "../../../../site/static/demo-tokens" as *;

$duration: $dur-quick;                              // 흔들림이 끝나는 시간
$easing: $ease-pop;
$color: $subject-cream;                              // 사진 프레임 색

@include stage($stage-ink);
.stage { padding: clamp(6px, 2.4vw, 16px); }   // 320px 대응: 데모 카드가 작아 여백도 줄인다

.photo {
  margin: 0;
  width: min(160px, 50vw);
  border-radius: $r-card;
  overflow: visible;                                  // 흔들릴 때 프레임 밖으로 살짝 나가도 된다
  outline: none;
  cursor: pointer;
}
.photo__pic {
  display: block;
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: $r-card;
  overflow: hidden;
  box-shadow: $shadow-raised;
  border: 3px solid $color;
  background: linear-gradient(155deg, $subject-cream 0%, $subject-blue 100%);
  transform: translateX(0);
}
.photo__sun {
  position: absolute;
  top: 16%;
  right: 18%;
  width: 20%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: $stage-yellow;
}
.photo__hill {
  position: absolute;
  left: -8%;
  right: -8%;
  bottom: -10%;
  height: 48%;
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
  background: $subject-ink;
  opacity: .85;
}
.photo__badge {
  position: absolute;
  top: 10px;
  left: 10px;
  padding: 4px 10px;
  border-radius: $r-pill;
  font-weight: 800; font-size: clamp(10px, 2.8vw, 12px); line-height: 1; font-family: inherit;
  letter-spacing: .04em;
  color: $subject-cream;
  background: $error;
}
.photo__cap {
  word-break: keep-all;
  margin: 0;
  padding: 10px 14px 0;
  font-weight: 600; font-size: clamp(12px, 3.4vw, 14px); line-height: 1.3; font-family: inherit;
  color: $color;
  background: transparent;
}

.photo:hover .photo__pic,
.photo:focus-visible .photo__pic,
.photo:active .photo__pic {
  animation: shake $duration $easing;
}

.photo.is-demo .photo__pic {
  animation: shake-loop $dur-loop linear infinite;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%      { transform: translateX(-6px); }
  40%      { transform: translateX(5px); }
  60%      { transform: translateX(-4px); }
  80%      { transform: translateX(3px); }
}

@keyframes shake-loop {
  0%, 55%, 100% { transform: translateX(0); }
  60%  { transform: translateX(-7px); }
  65%  { transform: translateX(6px); }
  70%  { transform: translateX(-6px); }
  75%  { transform: translateX(5px); }
  80%  { transform: translateX(-4px); }
  85%  { transform: translateX(3px); }
  90%  { transform: translateX(-2px); }
  95%  { transform: translateX(1px); }
}

@media (hover: none) {
  .photo:active .photo__pic { animation: shake $duration $easing; }
}

@media (prefers-reduced-motion: reduce) {
  .photo.is-demo .photo__pic { animation: none; }
  .photo:hover .photo__pic,
  .photo:focus-visible .photo__pic,
  .photo:active .photo__pic { animation: none; }
}

html, body {
  margin: 0;
  overflow: hidden;
}

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #17141a;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.stage {
  padding: clamp(6px, 2.4vw, 16px);
}

.photo {
  margin: 0;
  width: min(160px, 50vw);
  border-radius: 16px;
  overflow: visible;
  outline: none;
  cursor: pointer;
}

.photo__pic {
  display: block;
  position: relative;
  aspect-ratio: 4/3;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
  border: 3px solid #fff7e6;
  background: linear-gradient(155deg, #fff7e6 0%, #2f6df6 100%);
  transform: translateX(0);
}

.photo__sun {
  position: absolute;
  top: 16%;
  right: 18%;
  width: 20%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: #ffd23f;
}

.photo__hill {
  position: absolute;
  left: -8%;
  right: -8%;
  bottom: -10%;
  height: 48%;
  border-radius: 50% 50% 0 0/100% 100% 0 0;
  background: #17141a;
  opacity: 0.85;
}

.photo__badge {
  position: absolute;
  top: 10px;
  left: 10px;
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 800;
  font-size: clamp(10px, 2.8vw, 12px);
  line-height: 1;
  font-family: inherit;
  letter-spacing: 0.04em;
  color: #fff7e6;
  background: #c2361a;
}

.photo__cap {
  word-break: keep-all;
  margin: 0;
  padding: 10px 14px 0;
  font-weight: 600;
  font-size: clamp(12px, 3.4vw, 14px);
  line-height: 1.3;
  font-family: inherit;
  color: #fff7e6;
  background: transparent;
}

.photo:hover .photo__pic,
.photo:focus-visible .photo__pic,
.photo:active .photo__pic {
  animation: shake 220ms cubic-bezier(0.2, 1.4, 0.4, 1);
}

.photo.is-demo .photo__pic {
  animation: shake-loop 2s linear infinite;
}

@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  20% {
    transform: translateX(-6px);
  }
  40% {
    transform: translateX(5px);
  }
  60% {
    transform: translateX(-4px);
  }
  80% {
    transform: translateX(3px);
  }
}
@keyframes shake-loop {
  0%, 55%, 100% {
    transform: translateX(0);
  }
  60% {
    transform: translateX(-7px);
  }
  65% {
    transform: translateX(6px);
  }
  70% {
    transform: translateX(-6px);
  }
  75% {
    transform: translateX(5px);
  }
  80% {
    transform: translateX(-4px);
  }
  85% {
    transform: translateX(3px);
  }
  90% {
    transform: translateX(-2px);
  }
  95% {
    transform: translateX(1px);
  }
}
@media (hover: none) {
  .photo:active .photo__pic {
    animation: shake 220ms cubic-bezier(0.2, 1.4, 0.4, 1);
  }
}
@media (prefers-reduced-motion: reduce) {
  .photo.is-demo .photo__pic {
    animation: none;
  }
  .photo:hover .photo__pic,
  .photo:focus-visible .photo__pic,
  .photo:active .photo__pic {
    animation: none;
  }
}

import type { CSSProperties } from "react";
import styles from "./ShakePhoto.module.scss";

export type ShakePhotoProps = {
  caption: string;
  badge?: string;
  /** 흔들림이 끝나는 시간 (기본 220ms) */
  duration?: number;
  easing?: string;
  /** 프레임 색 */
  color?: string;
};

type Vars = CSSProperties & { "--duration"?: string; "--easing"?: string; "--color"?: string };

export default function ShakePhoto({
  caption,
  badge = "SALE",
  duration = 220,
  easing = "cubic-bezier(.2,1.4,.4,1)",
  color = "#fff7e6",
}: ShakePhotoProps) {
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  return (
    <figure className={styles.photo} style={vars} tabIndex={0}>
      <span className={styles.pic} aria-hidden="true">
        <span className={styles.sun} />
        <span className={styles.hill} />
        <span className={styles.badge}>{badge}</span>
      </span>
      <figcaption className={styles.cap}>{caption}</figcaption>
    </figure>
  );
}

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