.menu-button{
  font-family: source-code-pro;
  color: white;
  font-size: 20px;
  margin: 1px;
  display: inline-block;
  text-decoration: none;

  background-color: transparent;
  background-repeat: no-repeat;
  border: none;
  cursor: pointer;
  outline: none;
  margin-top: 40px;
  padding: 0;
  transition: opacity 0.15s;
}

.menu-button:hover{
  opacity: 0.5;
  transition: opacity 0.15s;
}

.menu-button:active{
  opacity: 0.2;
}

.menu-button:visited{
  text-decoration: none;
}

.back-button{
  font-family: Arial;
  font-size: 10px;
  font-weight: normal;
  color: black;
  text-decoration: none;
  vertical-align: middle;
  padding: 20px;
  transition: opacity 0.15s;
  text-align: left;
}

.back-button:hover{
  opacity: 0.5;
  transition: opacity 0.15s;
}

.back-button:active{
  opacity: 0.2;
}

.back-button:visited{
  text-decoration: none;
}

.project-link{
  text-decoration: none;
  transition: opacity 0.15s;
}

.project-link:hover{
  opacity: 0.75;
  transition: opacity 0.15s;
}

.project-link:active{
  opacity:0.5;
}

.contact-link{
  text-decoration: none;
  transition: opacity 0.15s;
}

.contact-link:hover{
  opacity: 0.75;
  transition: opacity 0.15s;
}

.contact-link:active{
  opacity:0.5;
}