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

body {
   font-family: Arial, sans-serif;
   font-size: 16px;
   line-height: 1.5;
   color: #333;
}

.container {
   max-width: 960px;
   margin: 0 auto;
   padding: 20px;
}

h1 {
   text-align: center;
   margin-bottom: 20px;
}

.card {
   display: flex;
   flex-direction: column;
   align-items: center;
   background-color: #f5f5f5;
   padding: 20px;
   margin-top: 20px;
}

.symbol {
   font-size: 96px;
   margin-bottom: 10px;
}

.form {
   display: flex;
   flex-direction: row;
   align-items: center;
   margin-top: 20px;
}

input[type="text"] {
   width: 100%;
   padding: 10px;
   border: 2px solid #ddd;
   border-radius: 5px;
   margin-right: 10px;
}

button {
   background-color: #4CAF50;
   color: white;
   padding: 10px 20px;
   border: none;
   border-radius: 5px;
   cursor: pointer;
}

button:hover {
   background-color: #3e8e41;
}