body {

}

nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
}

nav ul li {
    --c: goldenrod;
    color: var(--c);
   
    border: 0.3em solid var(--c);
    border-radius: 0.5em;
    width: 210px;
    height: 100px;
    text-transform: uppercase;
    font-weight: bold;
    font-family: sans-serif;
    letter-spacing: ;
    text-align: left;
    line-height: 1.5em;
    position: relative;
    overflow: hidden;
    z-index: 1;
    transition: 0.5s;
    margin: 1em;
	padding-top:10px;
}

nav ul li span {
	position: absolute;
	width: 203px;
	height: 100%;

    background-color: var(--c);
	transform: translateY(150%);
	border-radius: 50%;

    left: calc((var(--n) - 1) * 25%);
	transition: 0.5s;

    transition-delay: calc((var(--n) - 1) * 0.1s);
	z-index: -1;
	left: 19px;
}

nav ul li:hover {
    color: black;
}

nav ul li:hover span {
    transform: translateY(0) scale(2);
}

nav ul li span:nth-child(1) {
    --n: 1;
}

nav ul li span:nth-child(2) {
    --n: 2;
}

nav ul li span:nth-child(3) {
    --n: 3;
}

nav ul li span:nth-child(4) {
    --n: 4;
}


@import: url(https://fonts.googleapis.com/css?family=Roboto+Condensed);
body {
  font-family: 'Roboto Condensed', sans-serif;
  height: 100%;
  background-color: black;
  color: #fff;
  text-transform: uppercase;
}
.container {
  text-align: center;
}
h1 {
  margin-left: 30px;
  margin-bottom: 50px;
}
.button {
  width: 210px;
  padding-top: 5px;
  text-align: center;
  color: #000;
  text-transform: uppercase;
  font-weight: 600;
  margin-left: ;
  margin-bottom: 5px;
  cursor: pointer;
  display: inline-block;
}

.button-1 {
  background-color: transparent;
  border: 3px solid #00d7c3;
  border-radius: 50px;
  -webkit-transition: all .15s ease-in-out;
  transition: all .15s ease-in-out;
  color: #00d7c3;
}
.button-1:hover {
  box-shadow: 0 0 10px 0 #00d7c3 inset, 0 0 20px 2px #00d7c3;
  border: 3px solid #00d7c3;
}

.button-2 {
  color:#000000;
  border: 3px solid #c266d3;
  background-image: -webkit-linear-gradient(30deg, #c266d3 50%, transparent 50%);
  background-image: linear-gradient(30deg, #c266d3 50%, transparent 50%);
  background-size: 500px;
  background-repeat: no-repeat;
  background-position: 0%;
  -webkit-transition: background 300ms ease-in-out;
  transition: background 300ms ease-in-out;
}
.button-2:hover {
  background-position: 100%;
  color: #c266d3;
}

.button-3 {
  border: 2px solid #3c73ff;
  background-color: #3c73ff;
  border-radius: 20px;
  color: #fff;
  transition: .3s;
}
.button-3:hover {
  box-shadow: 8px 8px #99bdff;
  transition: .3s;
}

.button-4 {
  background-color: transparent;
  border: 3px solid #ff0251;
  color: #ff0251;
  transition: .3s;
}
.button-4:hover {
  animation: pulse 1s infinite;
  transition: .3s;
}
@keyframes pulse {
  0% {
    transform: scale(1);
  }
  70% {
    transform: scale(.9);
  }
    100% {
    transform: scale(1);
  }
}

.button-5 {
  width: 200px;
  border-radius: 5px;
  border: 3px solid #97c331;
  background-color: #d6ee94;
  background-image: #F4F200;
  background: rgb(148,223,90);
background: linear-gradient(340deg, rgba(148,223,90,1) 0%, rgba(216,236,173,1) 48%, rgba(64,187,95,1) 100%);
  background-size: 300px;
  background-repeat: no-repeat;
  background-position: 0%;
  -webkit-transition: background 300ms ease-in-out;
  transition: background 300ms ease-in-out;
}
.button-5:hover {
  background-position: -200%;
  transition: background 300ms ease-in-out;
}