.protocol_container{ 
    max-width: 500px;
	width: calc(100% - 0px);
    margin-left: auto;
    margin-right: auto;
    margin-top: 10px;
    margin-bottom: 20px; /* new */
    box-sizing: border-box;

    padding: 0px;    

    overflow: hidden; /* new */
    position: relative;
}