home-assistant.io/sass/custom/_component_page.scss

#components-page{
  .component-search{
    margin-bottom: 24px;

    input{
      width: 100%;
      padding: 10px;

      background-color: #fefefe;
      border-radius: 2px;
      border: 1px solid;
      border-color: #7c7c7c #c3c3c3 #ddd;
    }
  }
}

@media only screen and (max-width: $palm-end) {
  #components-page {
    .hass-option-cards {
      .option-card {
        width: 100%;
      }
    }
  }
}

@media only screen and (max-width: $lap-end) {
  #components-page {
    .filter-button-group {
      margin-bottom: 16px;

      .btn {
        display: inline-block;
        margin-right: 8px;
        margin-bottom: 8px;

        &.current {
          background-color: #3A5561;
          background-image: linear-gradient(to bottom, #3A5561,#3F6B7D);
        }
      }
    }
  }
}

@media only screen and (min-width: $desk-start) {
  #components-page {
    .filter-button-group {
      .featured {
        margin: 12px 0;
      }

      .version_select {
        margin: 12px 0 12px 0;
      }

      .version_select > select {
        width: 100%;
      }

      .btn {
        display: block;
        background: 0;
        color: black;
        box-shadow: none;
        text-shadow: none;
        padding: 2px;

        &.current {
          font-weight: bold;
        }
      }
    }
  }
}

// styles for the cards
.hass-option-cards {
  display: -ms-flexbox;
  display: -webkit-box;
  display: -webkit-flexbox;
  display: -webkit-flex;
  display: flex;

  flex-direction: row;
  flex-wrap: wrap;
  justify-content: flex-start;
  align-items: flex-start;
  margin: -4px; // grid trick, has to match option-card's margin

  p.note{
    width: 100%;
  }

  .option-card {
    flex: 0 0 auto;
    width: 210px;
    height: 142px;
    display: inline-block;
    background-color: #fefefe;
    margin: 4px;
    border-radius: 2px;
    box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -2px rgba(0, 0, 0, 0.2);
    padding: 8px;
    text-align: center;
    text-decoration: none;

    .img-container {
      height: 50px;
      margin: 8px 0;
      font: 0/0 a;

      &:before {    /* create a full-height inline block pseudo=element */
        content: ' ';
        display: inline-block;
        vertical-align: middle;  /* vertical alignment of the inline element */
        height: 100%;
      }

      img {
        max-width: 100%;
        max-height: 50px;
        box-shadow: none;
        border: none;
        vertical-align: middle;
      }
    }

    .title {
      text-decoration: none;
      font-size: 18px;
      color: #000;
      line-height: 1.3em;
      height: 2.6em;
    }

    .category {
      font-size: 14px;
      color: #AAA;
    }
  }

  // fade-in animation
  &.show-items .option-card{
    opacity:0;
    -webkit-animation:new-item-animation .2s linear forwards;
    -o-animation:new-item-animation .2s linear forwards;
    animation:new-item-animation .2s linear forwards;
  }

  // fade-out animation
  &.remove-items .option-card{
    -webkit-animation:removed-item-animation .2s cubic-bezier(.55,-0.04,.91,.94) forwards;
    -o-animation:removed-item-animation .2s cubic-bezier(.55,-0.04,.91,.94) forwards;
    animation:removed-item-animation .2s cubic-bezier(.55,-0.04,.91,.94) forwards
  }
}

// animations for fade-in and fade-out effects of option-cards
@keyframes new-item-animation {
  from {
    opacity:0;
    -webkit-transform:scale(0);
    -ms-transform:scale(0);
    -o-transform:scale(0);
    transform:scale(0)
  }
  to {
    opacity:1;
    -webkit-transform:scale(1);
    -ms-transform:scale(1);
    -o-transform:scale(1);
    transform:scale(1)
  }
}
@-webkit-keyframes new-item-animation {
  from {
    opacity:0;
    -webkit-transform:scale(0);
    transform:scale(0)
  }
  to {
    opacity:1;
    -webkit-transform:scale(1);
    transform:scale(1)
  }
}
@-o-keyframes new-item-animation {
  from {
    opacity:0;
    -o-transform:scale(0);
    transform:scale(0)
  }
  to {
    opacity:1;
    -o-transform:scale(1);
    transform:scale(1)
  }
}

// space blocker animation
@keyframes openspace {
  to {
    height:auto
  }
}

@-webkit-keyframes openspace {
  to {
    height:auto
  }
}
@-o-keyframes openspace {
  to {
    height:auto
  }
}

// removal animation
@keyframes removed-item-animation {
  from {
    opacity:1;
    -webkit-transform:scale(1);
    -ms-transform:scale(1);
    -o-transform:scale(1);
    transform:scale(1)
  }
  to {
    -webkit-transform:scale(0);
    -ms-transform:scale(0);
    -o-transform:scale(0);
    transform:scale(0);
    opacity:0
  }
}
@-webkit-keyframes removed-item-animation {
  from {
    opacity:1;
    -webkit-transform:scale(1);
    transform:scale(1)
  }
  to {
    -webkit-transform:scale(0);
    transform:scale(0);
    opacity:0
  }
}
@-o-keyframes removed-item-animation {
  from {
    opacity:1;
    -o-transform:scale(1);
    transform:scale(1)
  }
  to {
    -o-transform:scale(0);
    transform:scale(0);
    opacity:0
  }
}