* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f4f4f4;
  color: #333;
  line-height: 1.6;
}

header {
  background-color: #24292e;
  color: white;
  padding: 30px 20px;
  text-align: center;
  margin-bottom: 20px;
}

header h1 {
  font-size: 2.5rem;
}

.scroll-text {
  white-space: nowrap;
  overflow: hidden;
  box-sizing: border-box;
  background: #111;
  color: #fff;
  font-weight: bold;
  padding: 10px 0;
  position: relative;
  font-size: 0.9rem;
  margin-bottom: 30px;
  width: 100%;
}

.scroll-text::after {
  content: attr(text);
  position: relative;
  white-space: nowrap;
  display: inline-block;
  padding-left: 100%;
  animation: scroll 15s linear infinite;
}

@keyframes scroll {
  0% {
    left: 100%;
  }
  100% {
    left: -100%;
  }
}

section {
  padding: 30px 20px;
}

section h2 {
  color: #111;
  margin-bottom: 15px;
  border-bottom: 2px solid #ddd;
  display: inline-block;
  padding-bottom: 5px;
}

ul {
  list-style-type: square;
  padding-left: 20px;
}

a {
  color: #007acc;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

footer {
  text-align: center;
  padding: 15px;
  background: #24292e;
  color: white;
}
.scroll-text span{
    display: inline-block;
    padding-left: 100%;
    animation: scroll-left 15s linear infinite;
    white-space: nowrap;
}
@keyframes scroll-left{
    0% {
        transform: translateX(0%);
    }
    100%{
        transform: translateX(-100%);
    }
}