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by DelphinPRO

HTML

<div class="wrapper">
      <div class="block ">
      <div class="block__icon">
        <div class="icon"></div>
      </div>
      <div class="block__content">
        <div class="block__dot"></div>
        Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quos tenetur, odio ut sint accusantium laudantium modi
        voluptatibus in quo neque.
      </div>
    </div>
      <div class="block ">
      <div class="block__icon">
        <div class="icon"></div>
      </div>
      <div class="block__content">
        <div class="block__dot"></div>
        Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quos tenetur, odio ut sint accusantium laudantium modi
        voluptatibus in quo neque.
      </div>
    </div>
      <div class="block active">
      <div class="block__icon">
        <div class="icon"></div>
      </div>
      <div class="block__content">
        <div class="block__dot"></div>
        Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quos tenetur, odio ut sint accusantium laudantium modi
        voluptatibus in quo neque.
      </div>
    </div>
      <div class="block ">
      <div class="block__icon">
        <div class="icon"></div>
      </div>
      <div class="block__content">
        <div class="block__dot"></div>
        Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quos tenetur, odio ut sint accusantium laudantium modi
        voluptatibus in quo neque.
      </div>
    </div>
      <div class="block ">
      <div class="block__icon">
        <div class="icon"></div>
      </div>
      <div class="block__content">
        <div class="block__dot"></div>
        Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quos tenetur, odio ut sint accusantium laudantium modi
        voluptatibus in quo neque.
      </div>
    </div>
      <div class="block ">
      <div class="block__icon">
        <div class="icon"></div>
      </div>
      <div class="block__content">
        <div...

SCSS

* {
  &, &::before, &::after {
    box-sizing: border-box;
  }
}

$space: 10px;
$border-width: 2px;
$color: #66c5e5;
$color-active: #fcb365;
$background: #ffffff;

body {
  padding: 30px;
  background: #ffffff;
}

.wrapper {
  display: flex;
  flex-wrap: wrap;
  background: $background;
}

@mixin border($c: $color) {
}

@mixin borderTopRightRadius($c: $color) {
  .block__content {
    border-top-right-radius: 40px;
    border-top-color: $c;
    border-right-color: $c;
  }
}

@mixin borderBottomRightRadius($c: $color) {
  .block__content { border-color: transparent; }
  .block__icon {
    border-bottom-right-radius: 40px;
    border-right-color: $c;
    border-bottom-color: $c;
  }
}

@mixin borderTopLeftRadius($c: $color) {
  .block__content {
    border-top-left-radius: 40px;
    border-left-color: $c;
    border-top-color: $c;
  }
}

@mixin borderBottomLeftRadius($c: $color) {
  .block__content { border-color: transparent; }
  .block__icon {
    border-bottom-left-radius: 40px;
    border-left-color: $c;
    border-bottom-color: $c;
  }
}

.block {
  $_width: percentage(1/3);
  width: calc(#{$_width} - #{$space});

  position: relative;
  margin: ($space / 2);

  .icon {
    width: 40px;
    height: 40px;
    background: $color;
    display: block;
    margin: auto;
  }

  &__icon {
    height: 60px;
    border: $border-width solid transparent;
  }

  &__content {
    position: relative;
    border: $border-width solid transparent;
    border-top-color: $color;
    padding: 15px;
    margin-top: -$border-width;
  }

  &__dot {
    position: absolute;
    left: 50%;
    top: 0;
    width: 8px;
    height: 8px;
    margin: -4px 0 0 -4px;
    border-radius: 50%;
    border: 2px solid $background;
    background: $color;
    box-shadow: 0 0 0 2px $color, 0 0 0 7px $background;
  }

  &:first-child &__content::before,
  &:last-child &__content::before {
    content: '';
    position: absolute;
    top: -$border-width;
    width: 50%;
    height: $border-width;
   ...