CSS3 Hiệu ứng button đẹp

Demo

Đầu tiên chèn css dưới vào:

.centerer {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
}

.wrap {
  width: 50%;
  float: left;
}

[class^="btn-"] {
  position: relative;
  display: block;
  margin: 20px auto;
  width: 100%;
  height: 80px;
  max-width: 250px;
  text-transform: uppercase;
  overflow: hidden;
  border: 1px solid currentColor;
}

.btn-0 {
  color: #9a3789;
}
.btn-0:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 80px;
  background: #520c46;
}
.btn-0:hover {
  color: #e1c4dc;
}
.btn-0:hover:before {
  width: 250px;
}
.btn-0:active {
  background: #881474;
}

.btn-1 {
  color: #be876e;
}
.btn-1:after {
  content: '';
  width: 0;
  height: 0;
  -webkit-transform: rotate(360deg);
  border-style: solid;
  border-width: 0 0 0 0;
  border-color: #6b4432 transparent transparent transparent;
  position: absolute;
  top: 0;
  left: 0;
}
.btn-1:hover {
  color: #ecdcd4;
}
.btn-1:hover:after {
  border-width: 330px 330px 0 0;
}
.btn-1:active {
  background: #b27254;
}

.btn-1-2 {
  color: #bc4b41;
}
.btn-1-2:before {
  content: '';
  width: 0;
  height: 0;
  -webkit-transform: rotate(360deg);
  border-style: solid;
  border-width: 0 0 0 0;
  border-color: transparent transparent transparent #6a1a13;
  position: absolute;
  bottom: 0;
  left: 0;
}
.btn-1-2:after {
  content: '';
  width: 0;
  height: 0;
  -webkit-transform: rotate(360deg);
  border-style: solid;
  border-width: 0 0 0 0;
  border-color: transparent transparent #6a1a13 transparent;
  position: absolute;
  right: 0;
  bottom: 0;
}
.btn-1-2:hover {
  color: #ebcac7;
}
.btn-1-2:hover:before {
  border-width: 206.25px 0 0 206.25px;
}
.btn-1-2:hover:after {
  border-width: 0 0 206.25px 206.25px;
}
.btn-1-2:active {
  background: #b02b20;
}

.btn-2 {
  color: #48a6b1;
}
.btn-2:before {
  content: '';
  width: 0;
  height: 0;
  -webkit-transform: rotate(360deg);
  border-style: solid;
  border-width: 0 0 0 0;
  border-color: transparent transparent transparent #185a62;
  position: absolute;
  bottom: 0;
  left: 0;
}
.btn-2:after {
  content: '';
  width: 0;
  height: 0;
  -webkit-transform: rotate(360deg);
  border-style: solid;
  border-width: 0 0 0 0;
  border-color: transparent #185a62 transparent transparent;
  position: absolute;
  top: 0;
  right: 0;
}
.btn-2:hover {
  color: #c9e5e8;
}
.btn-2:hover:before {
  border-width: 165px 0 0 165px;
}
.btn-2:hover:after {
  border-width: 0 165px 165px 0;
}
.btn-2:active {
  background: #2896a3;
}

.btn-3 {
  color: #ad96a0;
}
.btn-3:before {
  content: '';
  width: 0;
  height: 0;
  -webkit-transform: rotate(360deg);
  border-style: solid;
  border-width: 0 0 0 0;
  border-color: transparent transparent transparent #5f4f56;
  position: absolute;
  bottom: 0;
  left: 0;
}
.btn-3:after {
  content: '';
  width: 0;
  height: 0;
  -webkit-transform: rotate(360deg);
  border-style: solid;
  border-width: 0 0 0 0;
  border-color: transparent #5f4f56 transparent transparent;
  position: absolute;
  top: 0;
  right: 0;
}
.btn-3 span:before {
  content: '';
  width: 0;
  height: 0;
  -webkit-transform: rotate(360deg);
  border-style: solid;
  border-width: 0 0 0 0;
  border-color: transparent transparent #5f4f56 transparent;
  position: absolute;
  right: 0;
  bottom: 0;
}
.btn-3 span:after {
  content: '';
  width: 0;
  height: 0;
  -webkit-transform: rotate(360deg);
  border-style: solid;
  border-width: 0 0 0 0;
  border-color: #5f4f56 transparent transparent transparent;
  position: absolute;
  top: 0;
  left: 0;
}
.btn-3:hover {
  color: #e7e0e3;
}
.btn-3:hover:before {
  border-width: 165px 0 0 165px;
}
.btn-3:hover:after {
  border-width: 0 165px 165px 0;
}
.btn-3:hover span:before {
  border-width: 0 0 165px 165px;
}
.btn-3:hover span:after {
  border-width: 165px 165px 0 0;
}
.btn-3:active {
  background: #9e838f;
}

.btn-4 {
  color: #8d53b3;
}
.btn-4:after {
  content: '';
  width: 0;
  height: 0;
  -webkit-transform: rotate(360deg);
  border-style: solid;
  border-width: 0 0 0 0;
  border-color: transparent #492064 transparent transparent;
  position: absolute;
  top: 0;
  right: 0;
}
.btn-4:before {
  content: '';
  width: 0;
  height: 0;
  -webkit-transform: rotate(360deg);
  border-style: solid;
  border-width: 0 0 0 0;
  border-color: transparent transparent transparent #492064;
  position: absolute;
  bottom: 0;
  left: 0;
}
.btn-4:before, .btn-4:after {
  border-color: #492064;
}
.btn-4 span:after {
  content: '';
  width: 0;
  height: 0;
  -webkit-transform: rotate(360deg);
  border-style: solid;
  border-width: 0 0 0 0;
  border-color: #492064 transparent transparent transparent;
  position: absolute;
  top: 0;
  left: 0;
}
.btn-4 span:before {
  content: '';
  width: 0;
  height: 0;
  -webkit-transform: rotate(360deg);
  border-style: solid;
  border-width: 0 0 0 0;
  border-color: transparent transparent #492064 transparent;
  position: absolute;
  right: 0;
  bottom: 0;
}
.btn-4 span:before, .btn-4 span:after {
  border-color: #492064;
}
.btn-4:hover {
  color: #decde9;
}
.btn-4:hover:before {
  border-width: 20px 62.5px;
}
.btn-4:hover:after {
  border-width: 20px 62.5px;
}
.btn-4:hover span:before {
  border-width: 20px 62.5px;
}
.btn-4:hover span:after {
  border-width: 20px 62.5px;
}
.btn-4:active {
  background: #7935a6;
}

.btn-5 {
  color: #808695;
}
.btn-5:after {
  content: '';
  width: 0;
  height: 0;
  -webkit-transform: rotate(360deg);
  border-style: solid;
  border-width: 0 0 0 0;
  border-color: transparent #3f444e transparent transparent;
  position: absolute;
  top: 0;
  right: 0;
}
.btn-5:before {
  content: '';
  width: 0;
  height: 0;
  -webkit-transform: rotate(360deg);
  border-style: solid;
  border-width: 0 0 0 0;
  border-color: transparent transparent transparent #3f444e;
  position: absolute;
  bottom: 0;
  left: 0;
}
.btn-5:hover {
  color: #dadce0;
}
.btn-5:hover:before, .btn-5:hover:after {
  border-width: 80px 262.5px;
}
.btn-5:active {
  background: #697182;
}

.btn-6 {
  color: #80629f;
}
.btn-6 span {
  position: absolute;
  display: block;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: #402a55;
  -webkit-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
  -webkit-transition: width 0.4s, height 0.4s;
  transition: width 0.4s, height 0.4s;
  z-index: -1;
}
.btn-6:hover {
  color: #dad1e3;
}
.btn-6:hover span {
  width: 562.5px;
  height: 562.5px;
}
.btn-6:active {
  background: #6a468e;
}

.btn-7 {
  color: #27692b;
}
.btn-7:before, .btn-7:after,
.btn-7 span:before,
.btn-7 span:after {
  content: '';
  position: absolute;
  top: 0;
  width: 63.5px;
  height: 0;
  background: #012f04;
}
.btn-7:before {
  left: 0;
}
.btn-7:after {
  left: 125px;
}
.btn-7 span:before, .btn-7 span:after {
  top: auto;
  bottom: 0;
}
.btn-7 span:before {
  left: 62.5px;
}
.btn-7 span:after {
  left: 187.5px;
}
.btn-7:hover {
  color: #c0d3c1;
}
.btn-7:hover:before, .btn-7:hover:after,
.btn-7:hover span:before,
.btn-7:hover span:after {
  height: 80px;
}
.btn-7:active {
  background: #014f06;
}

.btn-8 {
  color: #5177a7;
}
.btn-8:before, .btn-8:after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 250px;
  height: 0;
  background: #1e395b;
}
.btn-8:after {
  top: auto;
  bottom: 0;
}
.btn-8:hover {
  color: #ccd7e5;
}
.btn-8:hover:before, .btn-8:hover:after {
  height: 40px;
}
.btn-8:active {
  background: #325f98;
}

.btn-9 {
  color: #c93a8e;
}
.btn-9:before, .btn-9:after,
.btn-9 span:before,
.btn-9 span:after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 250px;
  height: 0;
  background: rgba(115, 14, 73, 0.25);
  -webkit-transition: 0.4s;
  transition: 0.4s;
}
.btn-9:after,
.btn-9 span:before {
  top: auto;
  bottom: 0;
}
.btn-9 span:before,
.btn-9 span:after {
  -webkit-transition-delay: 0.4s;
          transition-delay: 0.4s;
}
.btn-9:hover {
  color: #efc5de;
}
.btn-9:hover:before, .btn-9:hover:after,
.btn-9:hover span:before,
.btn-9:hover span:after {
  height: 80px;
}
.btn-9:active {
  background: #c0177a;
}

.btn-10 {
  color: #8f5c82;
}
.btn-10:before, .btn-10:after,
.btn-10 span:before,
.btn-10 span:after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 80px;
  background: rgba(74, 38, 65, 0.25);
  -webkit-transition: 0.4s;
  transition: 0.4s;
}
.btn-10:after,
.btn-10 span:before {
  left: auto;
  right: 0;
}
.btn-10 span:before,
.btn-10 span:after {
  -webkit-transition-delay: 0.4s;
          transition-delay: 0.4s;
}
.btn-10:hover {
  color: #decfda;
}
.btn-10:hover:before, .btn-10:hover:after,
.btn-10:hover span:before,
.btn-10:hover span:after {
  width: 250px;
}
.btn-10:active {
  background: #7b3f6c;
}

@-webkit-keyframes criss-cross-left {
  0% {
    left: -20px;
  }
  50% {
    left: 50%;
    width: 20px;
    height: 20px;
  }
  100% {
    left: 50%;
    width: 375px;
    height: 375px;
  }
}

@keyframes criss-cross-left {
  0% {
    left: -20px;
  }
  50% {
    left: 50%;
    width: 20px;
    height: 20px;
  }
  100% {
    left: 50%;
    width: 375px;
    height: 375px;
  }
}
@-webkit-keyframes criss-cross-right {
  0% {
    right: -20px;
  }
  50% {
    right: 50%;
    width: 20px;
    height: 20px;
  }
  100% {
    right: 50%;
    width: 375px;
    height: 375px;
  }
}
@keyframes criss-cross-right {
  0% {
    right: -20px;
  }
  50% {
    right: 50%;
    width: 20px;
    height: 20px;
  }
  100% {
    right: 50%;
    width: 375px;
    height: 375px;
  }
}
.btn-11 {
  position: relative;
  color: #9a7cba;
}
.btn-11:before, .btn-11:after {
  position: absolute;
  top: 50%;
  content: '';
  width: 20px;
  height: 20px;
  background: #8865ae;
  border-radius: 50%;
}
.btn-11:before {
  left: -20px;
  -webkit-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
  /*     animation: criss-cross-left 0.8s reverse; */
}
.btn-11:after {
  right: -20px;
  -webkit-transform: translate(50%, -50%);
          transform: translate(50%, -50%);
  /*     animation: criss-cross-right 0.8s reverse; */
}
.btn-11:hover:before, .btn-11:hover:after {
  /*       @include size($btn-width); */
}
.btn-11:hover:before {
  -webkit-animation: criss-cross-left 0.8s both;
          animation: criss-cross-left 0.8s both;
}
.btn-11:hover:after {
  -webkit-animation: criss-cross-right 0.8s both;
          animation: criss-cross-right 0.8s both;
}

Tiếp đến là đoạn code hiển thị button:

<div class="zzsc-container">
 <div class="centerer">
   <div class="wrap">
  <a class="btn-0" href="#">Swipe</a>
  <a class="btn-1" href="#">Diagonal Swipe</a>
  <a class="btn-1-2" href="#">Double Swipe</a>
  <a class="btn-2" href="#">Diagonal Close</a>
  <a class="btn-3" href="#"><span>Zoning In</span></a>
  <a class="btn-4" href="#"><span>4 Corners</span></a>
  <a class="btn-5" href="#">Slice</a>
   </div>
   <div class="wrap">
  <a class="btn-6" href="#">Position Aware<span></span></a>
  <a class="btn-7" href="#"><span>Alternate</span></a>
  <a class="btn-8" href="#">Smoosh</a>
  <a class="btn-9" href="#"><span>Vertical Overlap</span></a>
  <a class="btn-10" href="#"><span>Horizontal Overlap</span></a>
  <a class="btn-11" href="#">Collision</a>
   </div>
 </div>
</div>

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