guidance-panel { panel { min-width: none; } stack { width: 400px; margin: 0; padding: 0; } #nav-buttons { -moz-box-align: end; -moz-box-pack: end; } #nav-buttons > toolbarbutton { -moz-appearance: none; /* Necessary on Linux for button to be shown */ width: 22px; height: 22px; border: 1px solid lightgray; border-radius: 3px; background-position: 5px 5px; background-size: 10px; background-repeat: no-repeat; margin: 0; margin-bottom: -7px; } #nav-buttons > toolbarbutton:hover { border-color: var(--toolbarbutton-hover-bordercolor); box-shadow: var(--toolbarbutton-hover-boxshadow); } #nav-buttons > toolbarbutton:active:hover { border-color: var(--toolbarbutton-active-bordercolor); box-shadow: var(--toolbarbutton-active-boxshadow); transition-duration: 10ms; } #back-button { background-image: url("chrome://zotero/skin/chevron-left_808080_32.png"); } #forward-button { margin-right: -16px; background-image: url("chrome://zotero/skin/chevron-right_808080_32.png"); } #close-button-box { -moz-box-align: start; -moz-box-pack: end; } #close-button { margin: -16px -16px; } }