density.css

/*
***
* COSTUME STYLESHEET
***
* Please use the bootstrap color pallet and available css variables
* for a more consistent design
*/

/*
*----------------------------------------------------------------
* SITE HEADER
*----------------------------------------------------------------
*/

.site-header {
  background-color: rgba(0, 0, 0, 0.85);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
}

/*
*----------------------------------------------------------------
* HERO SECTION
*----------------------------------------------------------------
*/
.hero-section {
  background-color: var(--indigo);
}

.hero-section__graphic {
    /* to be added */
}

.hero-section__graphic,
.hero-section__graphic:before,
.hero-section__graphic:after {
  background-color: rgba(255, 255, 255, 0.1);
  width: 300px;
  height: 300px;
  border-radius: 40% 30% 30% 40% / 60% 40% 60% 40%;
}

.hero-section__graphic:before,
.hero-section__graphic:after {
  content: "";
  display: inline-block;
  position: absolute;
  left: 0;
  top: 0;
  animation: float 10s infinite linear;
}
.hero-section__graphic:after {
  animation-direction: reverse;
  animation-delay: 500ms;
}

.hero-section__icon {
  fill: var(--light);
  width: 100%;
  height: auto;
}

@keyframes float {
  0% {
    transform: translate(0%, 0%) rotate(0);
  }

  33% {
    transform: translate(2%, 2%) rotate(120deg);
  }

  66% {
    transform: translate(2%, -2%) rotate(240deg);
  }

  to {
    transform: translate(0%, 0%) rotate(360deg);
  }
}
footer .row a {
  text-decoration: none;
}
.form-control{
  background-color: #eaeaf2;
  color: #000;
  border: 1px solid #3013bc;
}
form{
  margin-top: -30px;
}/*
#formula{
  text-align: center;
  background-color: #000;
  color: #fff;
  border-radius: 5px;
  margin: 20px;
  padding: 20px;
}*/
.card{
  text-align: center;
}