, but this code // executes before the first paint, when is not yet present. The // classes are added to so styling immediately reflects the current // toolbar state. The classes are removed after the toolbar completes // initialization. const classesToAdd = ['toolbar-loading', 'toolbar-anti-flicker']; if (toolbarState) { const { orientation, hasActiveTab, isFixed, activeTray, activeTabId, isOriented, userButtonMinWidth } = toolbarState; classesToAdd.push( orientation ? `toolbar-` + orientation + `` : 'toolbar-horizontal', ); if (hasActiveTab !== false) { classesToAdd.push('toolbar-tray-open'); } if (isFixed) { classesToAdd.push('toolbar-fixed'); } if (isOriented) { classesToAdd.push('toolbar-oriented'); } if (activeTray) { // These styles are added so the active tab/tray styles are present // immediately instead of "flickering" on as the toolbar initializes. In // instances where a tray is lazy loaded, these styles facilitate the // lazy loaded tray appearing gracefully and without reflow. const styleContent = ` .toolbar-loading #` + activeTabId + ` { background-image: linear-gradient(rgba(255, 255, 255, 0.25) 20%, transparent 200%); } .toolbar-loading #` + activeTabId + `-tray { display: block; box-shadow: -1px 0 5px 2px rgb(0 0 0 / 33%); border-right: 1px solid #aaa; background-color: #f5f5f5; z-index: 0; } .toolbar-loading.toolbar-vertical.toolbar-tray-open #` + activeTabId + `-tray { width: 15rem; height: 100vh; } .toolbar-loading.toolbar-horizontal :not(#` + activeTray + `) > .toolbar-lining {opacity: 0}`; const style = document.createElement('style'); style.textContent = styleContent; style.setAttribute('data-toolbar-anti-flicker-loading', true); document.querySelector('head').appendChild(style); if (userButtonMinWidth) { const userButtonStyle = document.createElement('style'); userButtonStyle.textContent = `#toolbar-item-user {min-width: ` + userButtonMinWidth +`px;}` document.querySelector('head').appendChild(userButtonStyle); } } } document.querySelector('html').classList.add(...classesToAdd); })(); House Practice | GovInfo

House Practice

The House Practice: A Guide to the Rules, Precedents and Procedures of the House is a reference source for information on the rules and selected precedents governing the House procedure. This one volume publication was prepared by William Holmes Brown, House Parliamentarian from 1974 to 1994, and was published at the end of the 104th Congress after the Office of the House Parliamentarian made modifications. This reference source was designed to replace the Procedure in the U.S. House of Representatives. Periodic preparation by the House Parliamentarian of condensed and amplified versions of House precedents is required by Public Law 91-510.

The House Practice is organized into chapters covering fifty-nine subjects of House procedures. These chapters are listed alphabetically. Each chapter opens with an outline of the chapter’s main topics and their House Practice section numbers.

The House Practice is a summary review of selected precedents and not an exhaustive survey of all applicable rulings. The House Rules and Manual and the published volumes of House precedents remain the primary sources for in-depth analysis and authoritative citations. As required by law, the House Practice is a concordance or quick reference guide to those works.

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