.tool-area {
    margin: auto
}

.converter-box {
    margin-top: 25px
}

.tool-field {
    margin-bottom: 20px
}

.tool-field input {
    width: 100%;
    padding: 12px;
    font-size: 18px;
    border: 1px solid #ccc;
    border-radius: 6px
}

.conv-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 40px
}

.conv-table td,.conv-table th {
    border: 1px solid #ddd;
    padding: 8px
}

.conv-table th {
    background: #f5f5f5
}