.lazy-img:before {
  content: 'Learn more';
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0;
  background: white;
  transition: .3s cubic-bezier(.2,.9,0,1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: black;
  font-family: 'Playfair Display';
  font-size: 40px;
  overflow: hidden;
  white-space: nowrap;
  box-shadow: inset 0 0 0 0px black;
  z-index: 1;
}

.lazy-img:hover:before {
  width: 100%;
}
.lazy-img:active:before {
  box-shadow: inset 0 0 0 .1em black;
}

.thin-martin {
  position: relative;
  width: 200px;
  height: 100px;
  margin: 4em auto 0 auto;
  display: block;
  border: none;
  cursor: pointer;
  z-index: 1;
  font-family: 'Playfair Display';
  font-size: 20px;
}
.thin-martin:active span {
  background: black
}
.thin-martin span {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
  background: white;
}


.thin-martin:before,
.thin-martin:after {
  content: '';
  position: absolute;
  background: black;
  width: 20px;
  height: 20px;
  transition: 240ms;
  z-index: -1;
}
.thin-martin:before {
  top: -1px;
  right: -1px;
}
.thin-martin:after {
  bottom: -1px;
  left: -1px;
}
.thin-martin:hover:before,
.thin-martin:hover:after {
  width: calc(100% + 2px);
  height: calc(100% + 2px);
}