body{margin:0;overflow:hidden}.header{background-color:#808080d0;box-sizing:border-box;width:100%;padding:16px;position:absolute;top:0;left:0;display:flex;flex-direction:row;flex-wrap:wrap;justify-content:center;gap:16px}button,select{border:1px solid #404040;text-align:center;border-radius:4px;background-color:#f0f0f0;color:#000;font-size:1em}#num-copies-container{background-color:#f0f0f0;border:1px solid #404040;border-radius:4px;padding:.1em .1em .1em .2em}#num-copies{width:3.5em}canvas{width:100%;height:100vh;background-color:#e0e0e0;margin:0}.popup-container{position:absolute;top:0;left:0;width:100%;height:100%;display:none;justify-content:center;align-items:center;background-color:#00000080}.popup{border-radius:10px;border:1px solid #a0a0a0;background-color:#fff;padding:16px;display:flex;flex-direction:column;gap:16px;z-index:1}.popup-buttons{display:flex;flex-direction:row;gap:16px;justify-content:center}#textbox-editor-input{resize:none;width:45vw;height:45vh}#error-message{margin:16px}