SillyTavern/public/scripts/extensions/stable-diffusion/style.css

.sd_settings label:not(.checkbox_label) {
    display: block;
}

#sd_gen {
    /*order: 100;
    width: 40px;
    height: 40px;
    margin: 0;
    padding: 1px; */
    outline: none;
    border: none;
    cursor: pointer;
    transition: 0.3s;
    opacity: 0.7;
    display: flex;
    align-items: center;
    /* justify-content: center; */
}

#sd_gen:hover {
    opacity: 1;
    filter: brightness(1.2);
}

#sd_dropdown {
    z-index: 30000;
    backdrop-filter: blur(--SmartThemeBlurStrength);
}