#IerPniu { transition: all 0.3s ease-out; height: auto; } #IerPniu.collapsed { overflow: hidden; height: 0; } #status_IerPniu { transition: all 0.3s ease-out; height: auto; } #status_IerPniu.collapsed { overflow: hidden; height: 0; } .tool-container { max-width: 500px; }