.error{color:#c00000}.hidden{display:none}.bottom-gap{margin-bottom:10px}.large-bottom-gap{margin-bottom:20px}.limit-width{max-width:100%}input{touch-action:none}footer{position:fixed;left:0;bottom:0;width:100%;font-size:smaller;background-color:#fff}#protector{position:fixed;left:0;top:0;width:100vw;height:100vh;z-index:999}