heading.css

:root {
  --brand-main: #0e688b;
  --brand-main-light: #107eab;
  --brand-main-active: #005379;
  --brand-main-dark: #003146;
  --brand-main-nearly-black: #000222;
  --grayscale-white: #fff;
  --grayscale-light: #f8f8f8;
  --grayscale-medium: #d2d2d2;
  --grayscale-medium-dark: #979797;
  --grayscale-dark: #555555;
  --grayscale-black: #000000;
  --additional-red-light: #E5053A;
  --additional-red-dark: #A31621;
  --additional-purple-light: #420039;
  --additional-yellow: #F9A21A;
  --additional-skyblue: #48C5F8;
  --additional-orange: #D14600;
  --additional-green-light: #96BA3C;
  --additional-green-dark: #006400;
}

* {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

:root {
  --breakpoint-narrow: 30rem;
  --breakpoint-medium: 768px;
  --breakpoint-wide: 60rem;
  --breakpoint-extrawide: 75rem;
  --breakpoint-max-width: 75rem;
  --breakpoint-overwide: 80rem;
}

:host {
  display: block;
}

.hy-heading__container {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: reverse;
  -ms-flex-direction: column-reverse;
  flex-direction: column-reverse;
  width: 100%;
}

@media (min-width: 48em) {
  .hy-heading__container {
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
    -ms-flex-direction: row;
    flex-direction: row;
  }
}

.hy-heading {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-flex: 1;
  -ms-flex-positive: 1;
  flex-grow: 1;
  -ms-flex-negative: 0;
  flex-shrink: 0;
  max-width: 100%;
  width: auto;
}

.hy-heading__subsection {
  -ms-flex-negative: 2;
  flex-shrink: 2;
  overflow: hidden;
  width: 100%;
}

.hy-heading__subsection:after {
  background-color: var(--brand-main-nearly-black);
  content: " ";
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  height: 2px;
  width: 100%;
  margin-left: 0;
  margin-bottom: 1rem;
  position: relative;
  top: 50%;
  -webkit-transform: translateY(-50%);
  transform: translateY(-50%);
}

@media (min-width: 48em) {
  .hy-heading__subsection:after {
    margin-left: 2rem;
  }
}

h1, h2, h3, h4, h5, h6 {
  color: var(--brand-main-nearly-black);
  font-family: var(--main-font-family);
  font-weight: 600;
  padding: 0;
  margin: 0;
  width: 100%;
}

h1 {
  font-size: 32px;
  letter-spacing: -1px;
  line-height: 40px;
}

@media (min-width: 48em) {
  h1 {
    font-size: 48px;
    letter-spacing: -1.5px;
    line-height: 64px;
  }
}

h2 {
  font-size: 26px;
  letter-spacing: -0.82px;
  line-height: 32px;
}

@media (min-width: 48em) {
  h2 {
    font-size: 32px;
    letter-spacing: -1px;
    line-height: 40px;
  }
}

h3 {
  font-size: 22px;
  letter-spacing: -0.69px;
  line-height: 28px;
}

@media (min-width: 48em) {
  h3 {
    font-size: 26px;
    letter-spacing: -0.82px;
    line-height: 32px;
  }
}

h4 {
  font-size: 18px;
  letter-spacing: -0.56px;
  line-height: 24px;
}

@media (min-width: 48em) {
  h4 {
    font-size: 22px;
    letter-spacing: -0.69px;
    line-height: 28px;
  }
}

h5 {
  font-size: 16px;
  letter-spacing: -0.5px;
  line-height: 20px;
}

@media (min-width: 48em) {
  h5 {
    font-size: 18px;
    letter-spacing: -0.56px;
    line-height: 24px;
  }
}

h6 {
  font-size: 14px;
  letter-spacing: -0.44px;
  line-height: 16px;
}

@media (min-width: 48em) {
  h6 {
    font-size: 16px;
    letter-spacing: -0.5px;
    line-height: 20px;
  }
}