*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #fff;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
h1, h2, h3{
    margin-bottom: 15px;
    color: #444;
}
p{
    margin-bottom: 10px;
}
a{
    color: #3498db;
    text-decoration: none;
}
a:hover{
    text-decoration: underline;
}
.container{
    max-width: 1200px;
    margin: auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
.button{
    display: inline-block;
    padding: 10px 20px;
    background-color: #3498db;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-align: center;
}
.button:hover{
    background-color: #2980b9;
}
.input-field{
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 5px;
}
.input-field:focus{
    border-color: #3498db;
    outline: none;
}