# [[Ribbons]]
```css
/* Ribbons */
/* collapse buttons: change color */
.workspace-ribbon-collapse-btn {
color: var(--base2);
}
/* on left change background color */
.workspace-ribbon.mod-left {
border-color: transparent;
width: 35px;
background: var(--base3);
}
/* on left icons: change color */
.side-dock-ribbon-tab, .side-dock-ribbon-action {
color: var(--base2);
text-align: center;
font-size: 18px;
opacity: 0.9;
}
.side-dock-ribbon-tab, .side-dock-ribbon-action:hover {
color: var(--base5);
text-align: center;
}
/* on right change background color */
.workspace-ribbon.mod-right {
border-color: transparent;
width: 30px;
background: var(--base3);
}
/* hide Preview/Edit icon, only show on hover */
.view-action[aria-label*="Preview"], .view-action[aria-label*="Edit"] {
opacity: 0;
}
.view-action:hover {
opacity: 1;
}
```