
.test-title {
    text-align: center;
    margin-top: 0;
}

.sheet-container {
    max-width: 1000px;
    min-width: 800px;
    margin: auto;
 }

.operation-selection {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 10px;
    margin-top: 20px;
    font-size: 20px;
}

.operation-content {
    width: 320px;
    display: flex;
    align-items: center;
}

.operation-selection label {
    flex: none;
    width: 150px;
    white-space: nowrap;
    text-align: right;
 