Obsidian custom checkbox snippet

README.md

Custom checkboxes for Obsidian! It's like deathau's snippet except updated to work really well in Live Preview mode in Obsidian 1.0.

Simply edit the x inside checkboxes to >, ?, etc. to see styling like below!

Editing	Live Preview	Viewing

Installation:

• Download the checkbox.css file on this page
• In Obsidian, open Settings > Appearance > CSS snippets
• Click the folder icon to open the snippets folder (your_vault/.obsidian/snippets/, a hidden folder)
• Copy checkbox.css there
• Reload Obsidian
• Go back to the CSS snippets settings and enable the checkbox option

checkbox.css

/*
Obsidian styled checkboxes snippet (Oliver's version)
See https://github.com/deathau/obsidian-snippets#checkboxes for a demo.
This supports live preview editor mode and reading mode.
Tweaks: search this file for "tweak" to find places for common customizations.
Based on:
* https://github.com/deathau/obsidian-snippets/blob/main/checkbox.css (works with reading mode only)
* https://forum.obsidian.md/t/5-checkbox/35758 (works with live preview editor only)
This snippet combines both of the above snippets and irons out some inconsistencies.
*/

/* Hide a weird tick overlay */
input[type=checkbox]:checked::after {
  display: none !important;
}
/* Hide undesirable borders */
.HyperMD-list-line input[type="checkbox"]:checked {
  border: none !important;
}

/* Default checkbox styling */
.HyperMD-list-line input[type="checkbox"],
.markdown-preview-view input[type="checkbox"] {
  -webkit-appearance: none;
  box-sizing: border-box;
  /* (tweak): change text-normal to text-faint below to give unchecked checkboxes a lighter border */
  border: 1px solid var(--text-normal);
  position: relative;
  width: 16px;
  height: 16px;
  margin: 0;
  margin-right: 4px;
  margin-bottom: 2px;
  transition: background-color 200ms ease-out 0s;
  cursor: pointer;
  filter: none;
  border-radius: 4px;
}
.HyperMD-list-line input[type="checkbox"]:checked::before {
  position: absolute;
  color: white;
  text-align: center;
  font-weight: 900;
  line-height: 15px;
  width:12px;
  left:2px;
  right:2px;
}
.markdown-preview-view input[type="checkbox"]:checked {
  border: none;
  background-color: var(--interactive-accent);
}
.markdown-preview-view input[type="checkbox"]:hover {
  background-color: var(--background-primary-alt);
}
.markdown-preview-view input[type="checkbox"]:checked::before {
  position: absolute;
  color: white;
  text-align: center;
  font-weight: 900;
  line-height: 15px;
  width:12px;
  left:2px;
  right:2px;
}

/* SVG check mark for done ('- [x]') */
/* 'x' icon */
.HyperMD-list-line input[data-task="x"]:checked::before,
.markdown-preview-view li[data-task="x"]>input[type="checkbox"]:checked::before {
  content: '';
  top:2px;
  bottom:2px;
  background-color: white;
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 14'%3E%3Cpolygon points='5.5 11.9993304 14 3.49933039 12.5 2 5.5 8.99933039 1.5 4.9968652 0 6.49933039'%3E%3C/polygon%3E%3C/svg%3E");
}
/* strikethrough for done tasks */
.HyperMD-task-line[data-task="x"],
.markdown-preview-view ul>li[data-task="x"] {
  color: var(--checklist-done-color);
  text-decoration: var(--checklist-done-decoration);
}

/* SVG chevron right for deferred/scheduled ('- [>]') */
/* '-' icon */
.HyperMD-list-line input[data-task=">"]:checked::before,
.markdown-preview-view li[data-task=">"]>input[type="checkbox"]:checked::before {
  content: '';
  top:2px;
  bottom:2px;
  background-color: white;
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 14 14' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M8.12 7L3.26667 11.76L4.57333 13.0667L10.7333 7L4.57333 0.933332L3.26667 2.24L8.12 7Z'/%3E%3C/svg%3E");
}
/* strikethrough for deferred/scheduled tasks */
.HyperMD-task-line[data-task=">"],
.markdown-preview-view ul>li[data-task=">"] {
  color: var(--checklist-done-color);
  text-decoration: var(--checklist-done-decoration);
}

/* SVG line for cancelled/non-task ('- [-]') */
/* faint text-colored background */
.HyperMD-list-line input[data-task="-"]:checked,
.markdown-preview-view li[data-task="-"]>input[type="checkbox"]:checked {
  background-color: var(--checklist-done-color);
}
/* '-' icon */
.HyperMD-list-line input[data-task="-"]:checked::before,
.markdown-preview-view li[data-task="-"]>input[type="checkbox"]:checked::before {
  content: '';
  top:2px;
  bottom:2px;
  background-color: white;
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 14 14' xmlns='http://www.w3.org/2000/svg'%3E%3Crect x='0.5' y='6.5' width='13' height='1'/%3E%3C/svg%3E");
}
/* strikethrough for cancelled tasks */
.HyperMD-task-line[data-task="-"],
.markdown-preview-view ul>li[data-task="-"] {
  color: var(--checklist-done-color);
  text-decoration: var(--checklist-done-decoration);
}

/* question ('- [?]') */
/* yellow background */
.HyperMD-list-line input[data-task="?"]:checked,
.markdown-preview-view li[data-task="?"]>input[type="checkbox"]:checked {
  background-color: #A99400;
}
/* '?' icon */
.HyperMD-list-line input[data-task="?"]:checked::before,
.markdown-preview-view li[data-task="?"]>input[type="checkbox"]:checked::before {
  content: '?';
  -webkit-mask-image: none !important;
  background-color: #A99400 !important;
}
/* normal text */
.HyperMD-list-line[data-task="?"] span,
.markdown-preview-view ul>li[data-task="?"] {
  color: var(--text-normal);
  text-decoration: none;
}

/* important task ('- [!]') */
/* red background */
.HyperMD-list-line input[data-task="!"]:checked,
.markdown-preview-view li[data-task="!"]>input[type="checkbox"]:checked {
  background-color: #e73c4c !important;
}
/* '!' icon */
.HyperMD-list-line input[data-task="!"]:checked::before,
.markdown-preview-view li[data-task="!"]>input[type="checkbox"]:checked::before {
  content: '!';
  -webkit-mask-image: none !important;
  background-color: #e73c4c !important;
}
/* bold text */
.HyperMD-list-line[data-task="!"] span,
.markdown-preview-view ul>li[data-task="!"] {
  color: var(--text-normal);
  text-decoration: none;
  font-weight: var(--bold-weight);
  color: var(--bold-color);
}

This doesn't seem to work in callouts when in live mode. Is there way to edit it so it works?

Use .markdown-rendered to make it work in Live Preview callouts too. Like this:

/* remove strikethrough for checkboxes */
.HyperMD-task-line[data-task="x"],
.markdown-rendered ul>li[data-task="x"],
.markdown-preview-view[data-task="x"] {
	text-decoration: none;
	color: var(--text-normal);
}