codepens/interior-design-builder/dist/style.css

@import url("https://fonts.googleapis.com/css2?family=Dancing+Script&family=Playfair+Display&family=Montserrat&display=swap");
* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  width: 100%;
  font-family: Montserrat, sans-serif;
}
@media screen and (max-width: 1200px) {
  html,
body {
    font-size: 0.8em;
  }
}

h1 {
  font-size: 3em;
  margin-bottom: 0.25em;
}

h1,
header > h1 + * {
  font-family: "Playfair Display", serif;
  color: #59524f;
}

header > h1 + * {
  font-size: 1.4em;
  margin-top: 0;
}

.header {
  position: fixed;
  float: left;
  width: 18em;
  min-height: 100%;
  color: #f0f0f2;
  background-color: #59524f;
}
.header__menu ul {
  padding-left: 2em;
}
.header__branding {
  padding: 1.8em 1em 2em 1em;
  font-size: 2.5em;
  background-color: #8c7a70;
  font-family: "Dancing Script", cursive;
}
.header__menuItem {
  margin: 3em 0;
  font-size: 1.2em;
  perspective: 1000px;
  perspective-origin: calc(1.25em * 0.5) 50%;
}
.header__menuItemIcon {
  float: left;
  width: 1.25em;
  height: 1.25em;
}
.header__menuItemIcon svg {
  width: 1.25em;
  height: 1.25em;
  fill: #f0f0f2;
  stroke: #f0f0f2;
}
.header__menuItemLabel {
  display: inline-block;
  list-style-type: none;
  margin-left: 1em;
}

.main {
  float: right;
  padding: 1.25em 2.5em;
  width: calc(100% - 18em);
  min-height: 100%;
  background-color: #d9ccc1;
}

#cards {
  max-width: 75em;
}

.card {
  display: inline-block;
  position: relative;
  overflow: hidden;
  will-change: transform;
  height: 15em;
  width: 15em;
  background-color: #c5b3a3;
  border-radius: 25px;
  margin: 2em 2em 0 0;
  transition: opacity 150ms ease-in-out, transform 150ms ease-in-out;
}
.card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #f0f0f2;
  transition: opacity 500ms ease-in-out;
  opacity: 0;
  z-index: -1;
}
.card_favorited {
  transform-origin: 0.5em 0.5em;
}
.card_favorited::after {
  z-index: 1;
  opacity: 1;
}
.card_hidden {
  opacity: 0;
  visibility: hidden;
  transform: scale(0.5);
}
.card__image {
  width: 15em;
  height: 75%;
  border-radius: 25px 25px 0 0;
}
.card__image > img {
  position: relative;
  opacity: 0;
  transition: opacity 1000ms ease-in-out;
  width: 100%;
  height: 100%;
}
.card__image_loaded > img {
  opacity: 1;
}
.card__choice {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 25%;
}
.card__choice button {
  font-size: 0.9em;
  background-color: #59524f;
  width: 3em;
  height: 3em;
  border: none;
  border-radius: calc(3em / 2);
  padding: 0.3em 0 0 0;
  margin: 0 1em;
  cursor: pointer;
}
.card__choice button svg {
  width: 1.3em;
  height: 1.3em;
  fill: #d9ccc1;
  stroke: #d9ccc1;
}
.card__choice button[data-action=dislike]:hover, .card__choice button[data-action=dislike]:focus {
  background-color: #b71c1c;
}
.card__choice button[data-action=like]:hover, .card__choice button[data-action=like]:focus {
  background-color: #8c7a70;
}

.overflowFixForSafari {
  -webkit-backface-visibility: hidden;
  -moz-backface-visibility: hidden;
  -webkit-transform: translate3d(0, 0, 0);
  -moz-transform: translate3d(0, 0, 0);
}