style.css

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

body {
    font-family: Arial, sans-serif;
    background-color: #f1f1f1;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 4px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

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

h1 {
    font-size: 24px;
    margin-bottom: 10px;
}

p {
    margin-bottom: 20px;
    color: #666;
}

.form {
    display: flex;
}

.input,
.output {
    flex: 1;
    padding: 10px;
}

.code textarea,
.options .checkboxes label {
    display: block;
    margin-bottom: 10px;
}

.code .output,
textarea {
    width: 100%;
    height: 300px;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    resize: vertical;
    outline: none;
}

.options .checkboxes {
    display: flex;
    flex-wrap: wrap;
}

.options .checkboxes label {
    flex: 50%;
}

.options .checkboxes input[type="checkbox"] {
    margin-right: 5px;
}

button {
    padding: 10px 20px;
    background-color: #482121;
    border: none;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    border-radius: 4px;
}

button:hover {
    background-color: #7A3E3E;
}

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #EEEEEE;
}

::-webkit-scrollbar-thumb {
    background: #482121;
}