.button_slide {
  color: #FFF;
  border: 2px solid rgb(63, 150, 250);
	background-color: #3f96fa;
  border-radius: 9px;
  padding: 10px 20px;
  display: inline;
  font-family:'Open Sans', Arial, sans-serif;
  font-size: 16px;
  letter-spacing: 0px;
  cursor: pointer;
  box-shadow: inset 0 0 0 0 #3d73b9;
  -webkit-transition: ease-out 0.4s;
  -moz-transition: ease-out 0.4s;
  transition: ease-out 0.4s;
}

.slide_down:hover {
  box-shadow: inset 0 100px 0 0 #3d73b9;
}

.slide_right:hover {
  box-shadow: inset 400px 0 0 0 #3d73b9;
}

.slide_left:hover {
  box-shadow: inset 0 0 0 50px #3d73b9;
}

.slide_diagonal:hover {
  box-shadow: inset 400px 50px 0 0 #3d73b9;
}

#outer {
  width: 364px;
  margin: 50px auto 0 auto;
  text-align: center;
}


.button_slide_dark {
  color: #FFF;
  border: 2px solid rgb(13, 33, 46);
	background-color: #0d212e;
  border-radius: 9px;
  padding: 10px 22px;
  display: inline;
  font-family:'Open Sans', Arial, sans-serif;
  font-size: 16px;
  letter-spacing: 0px;
  cursor: pointer;
  box-shadow: inset 0 0 0 0 #2b363d;
  -webkit-transition: ease-out 0.4s;
  -moz-transition: ease-out 0.4s;
  transition: ease-out 0.4s;
}
.slide_right_dark:hover {
  box-shadow: inset 400px 0 0 0 #2b363d;
}
@media only screen and (min-width: 320px) and (max-width: 479px){
.button_slide_dark, .button_slide {
    display: block;
    font-weight: bold;
}
}