.container-posts {
  padding-inline: 20px;
}

.black-button-fill {
  width: 136px;
  height: 44px;
  background: #25303e;
  border: 2px solid #25303e;
  border-radius: 0;
  margin: 0;
  position: relative;
  display: block;
  overflow: hidden;
}

.black-button-fill span {
  color: white;
  z-index: 4;
  transition: color 0.2s ease-in;
  position: relative;
  text-align: center;
  font-family: Roboto;
  font-size: 14px;
  font-style: normal;
  font-weight: 700;
  line-height: 14px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  margin-bottom: 0;
  display: block;
  width: 100%;
  height: 100%;
  padding: 13px 16px;
}

.black-button-fill:before {
  content: "";
  position: absolute;
  background: white;
  bottom: 0;
  left: 0;
  right: 0;
  top: 100%;
  transition: top 0.2s ease-in-out;
}

.black-button-fill:hover:before {
  top: 0;
}

.black-button-fill:hover span {
  color: #25303e;
}

@media (min-width: 768px) {
  .container-posts {
    padding-inline: 54px;
  }
}

@media (min-width: 1440px) {
  .container-posts {
    padding-inline: 110px;
  }
}