button {
  padding: 2px 8px;
  border-radius: 10px;
  border: 2px solid;
  font: 16px 'Open Sans', sans-serif;
  text-transform: uppercase;
  background: none;
  outline: none;
  cursor: pointer;
  -webkit-transition: all .5s;
  transition: all .5s;
}

/* btn-1 */
.btn-1 {
  color: #A3F7BF;
  border-color: #A3F7BF;
  background: -webkit-linear-gradient(left, #a3f7bf, #a3f7bf) no-repeat;
  background: linear-gradient(to right, #a3f7bf, #a3f7bf) no-repeat;
  background-size: 0% 100%;
}
.btn-1:hover {
  background-size: 100% 100%;
  color: #27323A;
}

/* btn-2 */
.btn-2 {
	margin-left:20px;
  color: #3f6fdc;
  border-color: #3f6fdc;
  background: -webkit-linear-gradient(left, #3f6fdc, #3f6fdc) no-repeat;
  background: linear-gradient(to right, #3f6fdc, #3f6fdc) no-repeat;
  background-size: 100% 0%;
  padding-left: 10px;
}
.btn-2:hover {
  background-size: 100% 100%;
  color: #27323A;
}

/* btn-3 */
.btn-3 {
  color: #FFD460;
  border-color: #FFD460;
  position: relative;
  overflow: hidden;
}
.btn-3:before {
  content: "";
  position: absolute;
  top: 0;
  right: -5px;
  width: 0;
  height: 100%;
  background-color: #FFD460;
  z-index: -1;
  -webkit-transition: all .5s;
  transition: all .5s;
}
.btn-3:hover {
  color: #27323A;
}
.btn-3:hover:hover:before {
  width: 110%;
}

/* btn-4 */
.btn-4 {
  color: #FFD478;
  border-color: #FFD478;
  position: relative;
  overflow: hidden;
}
.btn-4:before {
  content: "";
  background-color: #FFD478;
  -webkit-transform: skew(45deg, 0);
          transform: skew(45deg, 0);
  width: 0;
  height: 100%;
  position: absolute;
  top: 0px;
  left: -30px;
  z-index: -1;
  -webkit-transition: all .5s;
  transition: all .5s;
}
.btn-4:hover {
  color: #27323A;
}
.btn-4:hover:before {
  width: 150%;
}

/* btn-5 */
.btn-5 {
  color: #96EAB7;
  border-color: #96EAB7;
  position: relative;
  overflow: hidden;
}
.btn-5:before {
  content: "";
  position: absolute;
  bottom: 0;
  left: -5px;
  width: 110%;
  height: 0;
  background-color: #96EAB7;
  z-index: -1;
  -webkit-transition: all .5s;
  transition: all .5s;
}
.btn-5:hover {
  color: #27323A;
}
.btn-5:hover:before {
  height: 100%;
}

/* btn-6 */
.btn-6 {
  color: #53CDD8;
  border-color: #53CDD8;
  position: relative;
  overflow: hidden;
}
.btn-6:before {
  content: "";
  background-color: #53CDD8;
  position: absolute;
  z-index: -1;
  top: 0;
  right: -30px;
  height: 100%;
  width: 0;
  -webkit-transform: skew(45deg, 0);
          transform: skew(45deg, 0);
  -webkit-transition: all .5s;
  transition: all .5s;
}
.btn-6:hover {
  color: #27323A;
}
.btn-6:hover:before {
  width: 150%;
}

/* btn-7 */
.btn-7 {
  color: #A6ACEC;
  border-color: #A6ACEC;
  overflow: hidden;
  position: relative;
}
.btn-7:before, .btn-7:after {
  content: "";
  height: 100%;
  width: 0;
  position: absolute;
  z-index: -1;
  background-color: #A6ACEC;
  top: 0;
  -webkit-transition: all 0.25s;
  transition: all 0.25s;
}
.btn-7:before {
  left: 0;
}
.btn-7:after {
  right: 0;
}
.btn-7:hover {
  color: #27323A;
}
.btn-7:hover:before, .btn-7:hover:after {
  width: 50%;
}

/* btn-8 */
.btn-8 {
  color: #ACE7EF;
  border-color: #ACE7EF;
  overflow: hidden;
  position: relative;
}
.btn-8:before, .btn-8:after {
  content: "";
  position: absolute;
  z-index: -1;
  height: 100%;
  width: 0;
  top: 0;
  background-color: #ACE7EF;
  -webkit-transition: all .4s;
  transition: all .4s;
}
.btn-8:before {
  left: -30px;
  -webkit-transform: skew(-45deg, 0);
          transform: skew(-45deg, 0);
}
.btn-8:after {
  right: -30px;
  -webkit-transform: skew(-45deg, 0);
          transform: skew(-45deg, 0);
}
.btn-8:hover {
  color: #27323A;
}
.btn-8:hover:before, .btn-8:hover:after {
  width: 80%;
}

/* btn-9 */
.btn-9 {
  color: #CEFFF1;
  border-color: #CEFFF1;
  overflow: hidden;
  position: relative;
}
.btn-9:before, .btn-9:after {
  content: "";
  position: absolute;
  z-index: -1;
  background-color: #CEFFF1;
  width: 100%;
  height: 0;
  left: 0;
  -webkit-transition: all .25s;
  transition: all .25s;
}
.btn-9:before {
  bottom: 50%;
}
.btn-9:after {
  top: 50%;
}
.btn-9:hover {
  color: #27323A;
}
.btn-9:hover:before, .btn-9:hover:after {
  height: 50%;
}