CSS infinite scroll animation | HTML, CSS & JavaScript

/* Vertical and Horizontal Screen Centering */
.scroll-wrap {
  display: flex;
  align-items: center;      /* Middle align vertically on screen */
  justify-content: center;   /* Center horizontally */
  min-height: 100vh;        /* Uses full screen height */
  background-color: #0d0d11;
  width: 100%;
  overflow: hidden;
  scale:0.7
}

/* Ticker Window Mask */
.scroll-container {
  overflow: hidden;
  width: 100%;
  padding: 20px 0;
  position: relative;
}

/* Linear Moving Track */
.scroll-content {
  display: flex;
  gap: 24px; 
  padding-right: 24px;      /* Matches gap value to eliminate layout snapping */
  width: max-content;
  animation: scroll-left 25s linear infinite;
}

/* 2:4 Ratio Card Container */
.item {
  flex-shrink: 0;
  width: 180px;             /* Base width of card */
  aspect-ratio: 2 / 4;      /* Locks shape to portrait proportion */
  border-radius: 14px;
  overflow: hidden;         /* Clips image edges to border-radius */
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.05);
  
  /* Fallback color/gradient if images take a moment to load */
  background: linear-gradient(145deg, #1e1e24, #141418); 
  
  transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Image Scaling Rules */
.item img {
  width: 100%;
  height: 100%;
  object-fit: cover;        /* Fills container safely without distortion */
  object-position: center;  /* Keeps focal area centered */
  display: block;
}

/* Interaction Effects */
.scroll-container:hover .scroll-content {
  animation-play-state: paused;
}

.item:hover {
  transform: scale(1.04);   /* Elegant scale focus state */
  border-color: rgba(255, 255, 255, 0.2);
}

/* Animation Sequence */
@keyframes scroll-left {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%); /* Resets invisibly halfway through */
  }
}

- CSS infinite scroll animation

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