testapp/styles.css

body {
    font-family: 'Roboto', sans-serif;
    background-color: #f5f5f5;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.tools-menu {
    display: flex;
    align-items: center;
    background-color: #ffffff;
    padding: 10px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.tool-button {
    background-color: #f0f0f0;
    border: none;
    padding: 10px;
    margin: 0 5px;
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.tool-button img {
    width: 24px;
    height: 24px;
}

.tool-button:hover {
    background-color: #e0e0e0;
}

.brush-size-slider {
    margin: 0 10px;
    width: 100px;
}

.brush-size-slider::-webkit-slider-thumb {
    background-color: #00aaff;
    border-radius: 50%;
    width: 16px;
    height: 16px;
}

.brush-size-slider::-webkit-slider-runnable-track {
    background-color: #cccccc;
    height: 4px;
    border-radius: 2px;
}