📊 Progress Bar

<div class="progress-classic"><div class="progress-classic-bar"></div></div>

.progress-classic {
  width: 300px;
  height: 8px;
  background: #f0f0f0;
  border-radius: 4px;
  overflow: hidden;
}
.progress-classic-bar {
  width: 65%;
  height: 100%;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
  border-radius: 4px;
  animation: progress-anim 2s ease-in-out infinite;
}
@keyframes progress-anim {
  0% { width: 0%; }
  50% { width: 100%; }
  100% { width: 0%; }
}

<div class="progress-percent">
  <div class="progress-percent-header">
    <span>Uploading...</span>
    <span class="progress-percent-value">75%</span>
  </div>
  <div class="progress-percent-bar">
    <div class="progress-percent-fill"></div>
  </div>
</div>

.progress-percent {
  width: 300px;
}
.progress-percent-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
  color: #1a1a2e;
  font-weight: 600;
}
.progress-percent-value {
  color: #667eea;
}
.progress-percent-bar {
  width: 100%;
  height: 10px;
  background: #f0f0f0;
  border-radius: 5px;
  overflow: hidden;
}
.progress-percent-fill {
  width: 75%;
  height: 100%;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
  border-radius: 5px;
  animation: progress-fill 3s ease-in-out infinite;
}
@keyframes progress-fill {
  0% { width: 0%; }
  50% { width: 100%; }
  100% { width: 0%; }
}

<div class="progress-striped"><div class="progress-striped-bar"></div></div>

.progress-striped {
  width: 300px;
  height: 12px;
  background: #f0f0f0;
  border-radius: 6px;
  overflow: hidden;
}
.progress-striped-bar {
  width: 100%;
  height: 100%;
  background: linear-gradient(
    45deg,
    #667eea 25%,
    #764ba2 25%,
    #764ba2 50%,
    #667eea 50%,
    #667eea 75%,
    #764ba2 75%,
    #764ba2
  );
  background-size: 20px 20px;
  animation: stripes 1s linear infinite;
}
@keyframes stripes {
  0% { background-position: 0 0; }
  100% { background-position: 20px 0; }
}