html, body {
  height: 100%;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: Montserrat, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

#handsontable-container.handsontable {
  height: 100%;
}

.place-your-ad-here {
  position: fixed;
  top: 30px;
  border-radius: 5px;
  font-weight: bold;
  padding: 10px 25px;
  text-align: center;
  line-height: 1.5;
  left: 42%;
}

[type=file] {
  height: 0;
  overflow: hidden;
  width: 0;
}

[type=file] + label {
  background: #f15d22;
  border: none;
  border-radius: 5px;
  color: #fff;
  cursor: pointer;
  display: inline-block;
  font-family: "Rubik", sans-serif;
  font-size: inherit;
  font-weight: 500;
  margin-bottom: 1rem;
  outline: none;
  padding: 1rem 50px;
  position: relative;
  transition: all 0.3s;
  vertical-align: middle;
}
[type=file] + label:hover {
  background-color: #1C3FAA;
}
[type=file] + label.btn-1 {
  background-color: #1C3FAA;
  box-shadow: 0 6px #1C3FAA;
  transition: none;
}
[type=file] + label.btn-1:hover {
  box-shadow: 0 4px #1C3FAA;
  top: 2px;
}
[type=file] + label.btn-2 {
  background-color: #99c793;
  border-radius: 50px;
  overflow: hidden;
}
[type=file] + label.btn-2::before {
  color: #fff;
  content: "";
  font-family: "Font Awesome 5 Pro";
  font-size: 100%;
  height: 100%;
  right: 130%;
  line-height: 3.3;
  position: absolute;
  top: 0px;
  transition: all 0.3s;
}
[type=file] + label.btn-2:hover {
  background-color: #497f42;
}
[type=file] + label.btn-2:hover::before {
  right: 75%;
}
[type=file] + label.btn-3 {
  background-color: #ee6d9e;
  border-radius: 0;
  overflow: hidden;
}
[type=file] + label.btn-3 span {
  display: inline-block;
  height: 100%;
  transition: all 0.3s;
  width: 100%;
}
[type=file] + label.btn-3::before {
  color: #fff;
  content: "";
  font-family: "Font Awesome 5 Pro";
  font-size: 130%;
  height: 100%;
  left: 0;
  line-height: 2.6;
  position: absolute;
  top: -180%;
  transition: all 0.3s;
  width: 100%;
}
[type=file] + label.btn-3:hover {
  background-color: #ae144f;
}
[type=file] + label.btn-3:hover span {
  transform: translateY(300%);
}
[type=file] + label.btn-3:hover::before {
  top: 0;
}