web.start-it.nl/themes/agico-hugo/assets/scss/_buttons.scss

.btn {
  font-size: 16px;
  //font-family: $font-primary;
  /* text-transform: capitalize; */
  padding: 14px 45px;
  border-radius: 45px;
  font-weight: 500;
  border: 2px solid;
  position: relative;
  z-index: 1;
  transition: .3s ease;
  overflow: hidden;
  text-decoration: none !important;

  &:focus,
  &:hover {
    outline: 0;
    box-shadow: none !important;
  }

  &:active {
    box-shadow: none;
    background: none;
  }

  img,
  svg,
  i {
    margin-right: 10px;
    font-size: 20px;
    vertical-align: middle;
  }

  img {
    width: 30px;
    height: 30px;
  }
}

.btn-lg {
  padding: 20px 40px;
}

.btn-sm {
padding: 10px 20px;
}

.btn-primary {
  border: 0;
  color: $white;
  background-color: transparent !important;

  &:not(&[type="submit"]) {
    border: 2px solid $color-secondary !important;

    &:hover {
      border: 2px solid $color-secondary !important;
      color: $color-primary !important;

      &:after {
        left: 102%;
      }
    }
  }

  &:after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 102%;
    height: 100%;
    background: $btn-gradient-primary;
    z-index: -1;
    transition: ease 0.3s;
  }

  &.btn-dark {
    &:hover {
      color: $color-secondary !important;
    }
  }
}

.btn-outline-primary {
  color: $color-secondary;
  border: 2px solid white !important;

  &:hover {
    color: $white !important;
    background: none !important;
    border: 2px solid $color-secondary;

    i {
      color: $white !important;
    }

    &:after {
      left: 0;
    }
  }

  &:after {
    content: '';
    position: absolute;
    top: 0;
    left: -102%;
    width: 102%;
    height: 100%;
    background: $btn-gradient-primary;
    z-index: -1;
    transition: ease 0.3s;
  }
}

.btn-white {
  background: $white !important;
  color: $color-primary !important;
  border: 1px solid $white !important;

  &:hover {
    color: $white !important;

    i {
      color: $white !important;
    }

    &:after {
      left: 0;
    }
  }

  &:after {
    content: '';
    position: absolute;
    top: 0;
    left: -102%;
    width: 102%;
    height: 100%;
    background: $color-primary !important;
    z-index: -1;
    transition: ease 0.3s;
  }
}

.btn-outline-white {
  color: $white !important;
  border: 1px solid $white !important;

  &:hover {
    color: $color-primary !important;
    background: none !important;
    border: 2px solid $color-secondary;

    i {
      color: $color-primary !important;
    }

    &:after {
      left: 0;
    }
  }

  &:after {
    content: '';
    position: absolute;
    top: 0;
    left: -102%;
    width: 102%;
    height: 100%;
    background: $white;
    z-index: -1;
    transition: ease 0.3s;
  }
}