nostrweb/src/styles/cards.css

/* https://developer.mozilla.org/en-US/docs/Web/CSS/Layout_cookbook/Media_objects */
.mbox {
  --profileimg-size: 4rem;
  --profileimg-size-half: 2rem;
  --profileimg-size-quarter: 1rem;
  align-items: center;
  display: flex;
  flex-direction: row;
  flex-shrink: 0;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  max-width: var(--content-width);
  padding: 0 var(--gap-half);
}
.mbox:last-child {
  margin-bottom: 0;
}
.mbox .mbox {
  padding: 0;
}

.mbox-img {
  align-self: start;
  background-color: var(--bgcolor-textinput);
  border-radius: var(--profileimg-size);
  flex-basis: var(--profileimg-size);
  height: var(--profileimg-size);
  margin-right: var(--gap-half);
  max-height: var(--profileimg-size);
  max-width: var(--profileimg-size);
  overflow: clip;
  position: relative;
  z-index: 2;
}

.mbox-img canvas,
.mbox-img img {
  display: block;
}

.mbox-updated-contact .mbox-img,
.mbox-recommend-server .mbox-img {
  --profileimg-size: 2rem;
  margin-left: 2rem;
}

.mbox-body {
  flex-grow: 0;
  flex-shrink: 1;
  word-break: break-word;
}
.mbox-img + .mbox-body {
  flex-basis: calc(100% - var(--profileimg-size) - var(--gap-half));
}

.mbox-header {
  flex-basis: calc(100% - var(--profileimg-size) - var(--gap-half));
  flex-grow: 0;
  flex-shrink: 1;
  margin-top: 0;
}
.mbox-header a {
  font-size: var(--font-small);
}

.mbox-kind0-name {
  color: var(--color);
}

.mbox-updated-contact .mbox-body,
.mbox-recommend-server .mbox-body {
  display: block;
  font-size: var(--font-small);
  overflow: scroll;
}

.mbox-updated-contact .mbox-header,
.mbox-recommend-server .mbox-header {
  display: inline;
}

.mbox-updated-contact {
  padding: 0 0 1rem 0;
  margin: 0;
}

.mbox {
  overflow: clip;
}
.mbox .mbox {
  overflow: visible;
  position: relative;
}
.mbox .buttons {
  margin-top: .2rem;
}
.mbox button:not(#publish) {
  --bg-color: none;
  --border-color: none;
}
.mbox button img + small {
  padding-left: .5rem;
}
.mobx-replies {
  flex-grow: 1;
  position: relative;
}
.mobx-replies .mobx-replies {
  --reply-padding: 3rem;
  margin-bottom: 2px;
  padding: 0 1rem 0 var(--reply-padding);
}
.mobx-replies .mobx-replies .mobx-replies {
  --reply-padding: 0;
}
.mbox .mbox::before,
.mobx-replies::before {
  background-color: var(--bgcolor-inactive);
  border: none;
  content: "";
  display: block;
  height: 200vh;
  left: var(--profileimg-size-half);
  margin-left: -.2rem;
  position: absolute;
  top: -200vh;
  width: .4rem;
}
.mobx-replies .mbox .mbox::before {
  background: none;
  border-color: var(--bgcolor-inactive);;
  border-style: solid;
  border-width: 0 0 .4rem .4rem;
  content: "";
  display: block;
  height: var(--profileimg-size-quarter);
  left: calc(-1 * var(--profileimg-size-quarter));
  margin-left: -.2rem;
  position: absolute;
  top: 0;
  width: .8rem;
}
.mobx-replies .mbox .mbox::after {
  background-color: var(--bgcolor-inactive);
  border: none;
  content: "";
  display: block;
  height: 100vh;
  left: calc(-1 * var(--profileimg-size-quarter));
  margin-left: -.2rem;
  position: absolute;
  top: -100vh;
  width: .4rem;
}
/* support visualisation of 3 levels of thread nesting, rest render flat without line */
.mbox .mobx-replies .mobx-replies::before,
.mobx-replies .mobx-replies .mbox .mbox::before {
  content: none;
}
.mobx-replies .mbox .mbox .mbox-img {
  --profileimg-size: 2rem;
  left: -.2rem;
  margin-right: .5rem;
  margin-top: .2rem;
  position: relative;
}

[data-append]::after {
  color: var(--color-accent);
  content: "…";
}

.preview-loaded a {
  background-color: var(--bgcolor-textinput);
  border: 1px solid var(--bgcolor-inactive);
  color: var(--color);
  display: flex;
  flex-direction: column;
  margin: var(--gap) 0 0 0;
  max-width: 48rem;
  padding: 1.5rem 1.8rem;
  text-decoration: none;
}
.preview-loaded a:visited {
  color: inherit;
}

.preview-title {
  font-size: inherit;
  margin: 0;
}

.preview-descr {
  font-size: var(--font-small);
}

.preview-image {
  background-color: rgba(72, 63, 63, 0.07);
  margin-bottom: var(--gap);
  max-height: 30vh;
  object-fit: contain;
}

.preview-image-only {
  background-color: var(--bgcolor-textinput);
  border: 1px solid var(--bgcolor-inactive);
  margin: var(--gap) 0 0 0;
  max-width: 48rem;
  padding: 1.5rem 1.8rem;
  width: 100%;
}