:root {
    --primary-color: #4CAF50;
    --secondary-color: #45a049;
  }

*{
    transition: 0.5s;
}

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
    color: #333;
}

header {
    background-color: var(--primary-color);
    color: white;
    padding: 1rem 0;
    text-align: center;
}
.container {
    max-width: 900px;
    margin: 2rem auto;
    padding: 1rem;
    background: white;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}
h1, h2 {
    color: var(--primary-color);
}
p {
    line-height: 1.6;
}
.highlight {
    font-weight: bold;
    color: #333;
}
footer {
    text-align: center;
    padding: 1rem 0;
    background-color: #333;
    color: white;
    margin-top: 2rem;
}
.button {
    position: relative;
    display: block;
    width: 200px;
    margin: auto;
    margin-top: 2rem;
    padding: 1rem;
    text-align: center;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    transition: 0.5s;
}
.button:hover{
    transform: scale(1.1);
}

.button {
    overflow: hidden;
}

.button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(90deg, red, green, blue, red);
    background-size: 300%;
    border-radius: 5px;
    animation: borderAnimation 4s linear infinite;
}

.button:hover::before {
    background-size: 400%;
}

@keyframes borderAnimation {
    0% {
        background-position: 0% 50%;
    }
    100% {
        background-position: 100% 50%;
    }
}