body {
    background: #000;
    color: #fff;
}

h1 {
    position: relative;
    text-align: center;
    font-size: 50px;
    font-family: 'Lemon/Milk Bold';
    text-shadow: 0 0 5px #0bf4f3, 0 0 10px #0bf4f3, 0 0 20px #0bf4f3, 0 0 40px #0bf4f3, 0 0 80px #0bf4f3;
}

p {
    font-family: 'Lemon/Milk Bold';
    font-weight: 300;
    text-align: center;
    font-size: 20px;
    color: #fff;
}

.frame {
    width: 90%;
    margin: 40px auto;
    text-align: center;
}

button {
    margin: 20px;
}

.custom-btn {
    color: #fff;
    width: 130px;
    height: 40px;
    padding: 10px 25px;
    font-family: 'Lemon/Milk Bold';
    font-weight: 500;
    background: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    display: inline-block;
}


/* 1 */

.btn-1 {
    border: none;
    background-color: #ff9aff;
    box-shadow: 0 0 5px #ef97e8;
}

.btn-1:hover {
    box-shadow: 0 0 10px #ef97e8, 0 0 20px #ef97e8, 0 0 20px #fff inset;
}


/* 2 */

.btn-2 {
    color: #0bf4f3;
    border: 1px solid #0bf4f3;
    box-shadow: 0 0 5px #0bf4f3, 0 0 5px #0bf4f3 inset;
}

.btn-2:before {
    height: 0%;
    width: 2px;
}

.btn-2:hover {
    color: #fff;
    box-shadow: inset 0 0 10px #0bf4f3, 0 0 20px #0bf4f3 inset, 0 0 20px #0bf4f3 inset;
}


/* 3 */

.btn-3 {
    background: #00aced;
    box-shadow: 0 0 5px #00aced, 0 0 8px #00aced;
    line-height: 42px;
    padding: 0;
    border: none;
    z-index: 2;
    -webkit-transition: all 0.3s linear;
    transition: all 0.3s linear;
}

.btn-3:hover {
    background-color: transparent;
    color: #00aced;
    box-shadow: 0 5px 3px -3px #00aced, 0 -5px 3px -3px #00aced, 0 5px 3px -3px #00aced, 0 -5px 3px -3px #00aced;
}

.btn-3:before,
.btn-3:after {
    position: absolute;
    content: "";
    left: 0;
    width: 100%;
    height: 50%;
    right: 0;
    z-index: -1;
    background: #00aced;
    box-shadow: 0 0 5px #00aced;
    transition: all 0.3s ease;
}

.btn-3:before {
    top: 0;
}

.btn-3:after {
    bottom: 0;
}

.btn-3:hover:before,
.btn-3:hover:after {
    height: 0;
    background-color: #00aced;
}


/* 4 */

.btn-4 {
    color: #8ce436;
    padding: 0;
    border: 1px solid #8ce436;
    box-shadow: 0 0 5px #8ce436, 0 0 5px inset;
}

.btn-4:after {
    position: absolute;
    content: "";
    top: 5px;
    left: 6px;
    width: 90%;
    height: 70%;
    border: 1px solid #8ce436;
    box-shadow: 0 0 5px #8ce436 inset;
    opacity: 0;
    transition: all 0.3s ease;
}

.btn-4:hover:after {
    opacity: 1;
}


/* 5 */

.btn-5 {
    background: #21ebff;
    line-height: 42px;
    padding: 0;
    border: none;
}

.btn-5:hover {
    background: transparent;
    color: #21ebff;
}

.btn-5:before,
.btn-5:after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    height: 2px;
    background: #21ebff;
    width: 0;
    box-shadow: 0 0 5px #21ebff, 0 0 5px #21ebff inset;
    transition: 400ms ease all;
}

.btn-5:after {
    right: inherit;
    top: inherit;
    left: 0;
    bottom: 0;
}

.btn-5:hover:before,
.btn-5:hover:after {
    width: 100%;
    transition: 800ms ease all;
}


/* 6 */

.btn-6 {
    background: #8ce436;
    line-height: 40px;
    padding: 0;
    border: none;
    box-shadow: 0 0 5px #8ce436;
}

.btn-6 span {
    position: relative;
    display: block;
    width: 100%;
    height: 100%;
}

.btn-6:hover {
    background: transparent;
}

.btn-6:before,
.btn-6:after {
    position: absolute;
    content: "";
    height: 0%;
    width: 2px;
    background: #8ce436;
    box-shadow: 0 0 5px #8ce436;
}

.btn-6:before {
    right: 0;
    top: 0;
    transition: all 500ms ease;
}

.btn-6:after {
    left: 0;
    bottom: 0;
    transition: all 500ms ease;
}

.btn-6:hover:before {
    transition: all 500ms ease;
    height: 100%;
}

.btn-6:hover:after {
    transition: all 500ms ease;
    height: 100%;
}

.btn-6 span:before,
.btn-6 span:after {
    position: absolute;
    content: "";
    background: #8ce436;
    box-shadow: 0 0 5px #8ce436;
}

.btn-6 span:before {
    left: 0;
    top: 0;
    width: 0%;
    height: 2px;
    transition: all 500ms ease;
}

.btn-6 span:after {
    right: 0;
    bottom: 0;
    width: 0%;
    height: 2px;
    transition: all 500ms ease;
}

.btn-6 span:hover:before {
    width: 100%;
}

.btn-6 span:hover:after {
    width: 100%;
}


/* 7 */

.btn-7 {
    color: rgb(255, 255, 255);
    line-height: 40px;
    padding: 0;
    border: none;
}

.btn-7 span {
    position: relative;
    display: block;
    width: 100%;
    height: 100%;
}

.btn-7:before,
.btn-7:after {
    position: absolute;
    content: "";
    right: 0;
    bottom: 0;
    background: rgba(102, 212, 250, 1);
    box-shadow: 0 0 5px rgba(102, 212, 250, 1);
    transition: all 0.3s ease;
}

.btn-7:before {
    height: 50%;
    width: 2px;
}

.btn-7:after {
    width: 20%;
    height: 2px;
}

.btn-7:hover:before {
    height: 100%;
}

.btn-7:hover:after {
    width: 100%;
}

.btn-7 span:before,
.btn-7 span:after {
    position: absolute;
    content: "";
    left: 0;
    top: 0;
    background: rgba(102, 212, 250, 1);
    box-shadow: 0 0 5px rgba(102, 212, 250, 1);
    transition: all 0.3s ease;
}

.btn-7 span:before {
    width: 2px;
    height: 50%;
}

.btn-7 span:after {
    height: 2px;
    width: 20%;
}

.btn-7 span:hover:before {
    height: 100%;
}

.btn-7 span:hover:after {
    width: 100%;
}


/* 8 */

.btn-8 {
    line-height: 40px;
    padding: 0;
    background: transparent;
    border: 1px solid #ff9aff;
    box-shadow: 0 0 5px #ff9aff, 0 0 5px #ff9aff inset;
    position: relative;
    z-index: 2;
    color: #fff;
    -webkit-perspective: 300px;
    perspective: 300px;
    -webkit-transform-style: preserve-3d;
    transform-style: preserve-3d;
}

.btn-8:hover {
    color: #ff9aff;
}

.btn-8:after {
    position: absolute;
    content: "";
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #ff9aff;
    box-shadow: 0 0 5px #ff9aff;
    z-index: -1;
    -webkit-transform-origin: center bottom;
    transform-origin: center bottom;
    -webkit-transform: rotateX(0);
    transform: rotateX(0);
    transition: all 0.3s ease;
}

.btn-8:hover:after {
    -webkit-transform: rotateX(-180deg);
    transform: rotateX(-180deg);
}


/* 9 */

.btn-9 {
    color: #fff352;
    border: 1px solid #fff352;
    box-shadow: 0 0 5px #fff352, 0 0 5px #fff352 inset;
    z-index: 2;
    transition: all 0.3s ease;
    overflow: hidden;
}

.btn-9:after {
    position: absolute;
    content: " ";
    z-index: -1;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transition: all 0.3s ease;
}

.btn-9:hover {
    color: #000;
}

.btn-9:hover:after {
    background: #fff352;
    -webkit-transform: scale(2) rotate(180deg);
    transform: scale(2) rotate(180deg);
    box-shadow: 4px 4px 6px 0 rgba(255, 255, 255, 1), -4px -4px 6px 0 rgba(116, 125, 136, .2), inset -4px -4px 6px 0 rgba(255, 255, 255, 1), inset 4px 4px 6px 0 rgba(116, 125, 136, .3);
}


/* 10 */

.btn-10 {
    border: 1px solid #ff9aff;
    box-shadow: 0 0 5px #ff9aff, 0 0 5px #ff9aff inset;
    color: #ff9aff;
    background: #000;
    z-index: 2;
    transition: all 0.3s ease;
    overflow: hidden;
}

.btn-10:after {
    position: absolute;
    content: " ";
    top: 0;
    left: 0;
    z-index: -1;
    width: 100%;
    height: 100%;
    background: #ff9aff;
    transition: all 0.3s ease;
    -webkit-transform: scale(0);
    transform: scale(0);
}

.btn-10:hover {
    color: #fff;
}

.btn-10:hover:after {
    -webkit-transform: scale(1);
    transform: scale(1);
}


/* 11 */

.btn-11 {
    border: 1px solid #21ebff;
    color: #21ebff;
    box-shadow: 0 0 5px #21ebff, 0 0 5px #21ebff inset;
    transition: all 0.3s ease;
}

.btn-11:hover {
    text-shadow: 0 0 20px #21ebff, 0 0 50px rgba(33, 235, 255, .9), 0 0 75px rgba(33, 235, 255, .8), 0 0 76px rgba(33, 235, 255, .7), 0 0 77px rgba(33, 235, 255, .6), 0 0 78px rgba(33, 235, 255, .5), 0 0 79px rgba(33, 235, 255, .4), 0 0 80px rgba(33, 235, 255, .3), 0 0 85px rgba(33, 235, 255, .2), 0 0 99px rgba(33, 235, 255, .1);
}


/* 12 */

.btn-12 {
    color: #0bf4f3;
    position: relative;
    right: 20px;
    bottom: 20px;
    border: none;
    width: 130px;
    height: 40px;
    line-height: 40px;
    -webkit-perspective: 230px;
    perspective: 230px;
}

.btn-12 span {
    display: block;
    position: absolute;
    width: 130px;
    height: 40px;
    border: 1px solid #0bf4f3;
    box-shadow: 0 0 5px #0bf4f3, 0 0 5px #0bf4f3 inset;
    margin: 0;
    text-align: center;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    -webkit-transition: all .3s;
    transition: all .3s;
}

.btn-12 span:nth-child(1) {
    box-shadow: 0 0 5px #0bf4f3, 0 0 5px #0bf4f3 inset;
    -webkit-transform: rotateX(90deg);
    -moz-transform: rotateX(90deg);
    transform: rotateX(90deg);
    -webkit-transform-origin: 50% 50% -20px;
    -moz-transform-origin: 50% 50% -20px;
    transform-origin: 50% 50% -20px;
}

.btn-12 span:nth-child(2) {
    -webkit-transform: rotateX(0deg);
    -moz-transform: rotateX(0deg);
    transform: rotateX(0deg);
    -webkit-transform-origin: 50% 50% -20px;
    -moz-transform-origin: 50% 50% -20px;
    transform-origin: 50% 50% -20px;
}

.btn-12:hover span:nth-child(1) {
    -webkit-transform: rotateX(0deg);
    -moz-transform: rotateX(0deg);
    transform: rotateX(0deg);
}

.btn-12:hover span:nth-child(2) {
    background: #000;
    color: #000;
    box-shadow: 0 0 5px #0bf4f3, 0 0 5px #0bf4f3 inset;
    -webkit-transform: rotateX(-90deg);
    -moz-transform: rotateX(-90deg);
    transform: rotateX(-90deg);
}


/* 13 */

.btn-13 {
    color: #0bf4f3;
    box-shadow: 0 0 5px #0bf4f3, 0 0 5px #0bf4f3 inset;
    border: 1px solid #0bf4f3;
    z-index: 1;
}

.btn-13:after {
    position: absolute;
    content: "";
    width: 100%;
    height: 0;
    bottom: 0;
    left: 0;
    z-index: -1;
    box-shadow: 0 0 5px #0bf4f3, 0 0 5px #0bf4f3 inset;
    transition: all 0.3s ease;
}

.btn-13:hover {}

.btn-13:hover:after {
    top: 0;
    height: 100%;
}

.btn-13:active {
    top: 2px;
}


/* 14 */

.btn-14 {
    position: relative;
    color: #00aced;
    border: none;
    z-index: 2;
}

.btn-14:before,
.btn-14:after {
    position: absolute;
    content: "";
    width: 20%;
    height: 20%;
    border: 1px solid;
    z-index: -1;
    transition: all 0.3s ease;
}

.btn-14:before {
    top: 0;
    left: 0;
    border-bottom-color: transparent;
    border-right-color: transparent;
    border-top-color: #00aced;
    border-left-color: #00aced;
}

.btn-14:after {
    bottom: 0;
    right: 0;
    border-top-color: transparent;
    border-left-color: transparent;
    border-bottom-color: #00aced;
    border-right-color: #00aced;
}

.btn-14:hover:before,
.btn-14:hover:after {
    border-color: #00aced;
    height: 100%;
    width: 100%;
    box-shadow: 0 0 5px #00aced, 0 0 5px #00aced inset;
}


/* 15 */

.btn-15 {
    color: #ff9aff;
    border: 1px solid#ff9aff;
    box-shadow: 0 0 5px #ff9aff, 0 0 5px #ff9aff inset;
    z-index: 1;
}

.btn-15:after {
    position: absolute;
    content: "";
    width: 0;
    height: 100%;
    top: 0;
    right: 0;
    z-index: -1;
    background: #ff9aff;
    box-shadow: 0 0 20px #ff9aff;
    transition: all 0.3s ease;
}

.btn-15:hover {
    color: #fff;
}

.btn-15:hover:after {
    left: 0;
    width: 100%;
}

.btn-15:active {
    top: 2px;
}


/* 16 */

.btn-16 {
    border: 1px solid #fff;
    box-shadow: 0 0 5px #fff, 0 0 5px #fff inset;
}

.btn-16:after {
    position: absolute;
    content: "";
    width: 0;
    height: 100%;
    top: 0;
    left: 0;
    direction: rtl;
    z-index: -1;
    box-shadow: -7px -7px 20px 0px #fff9, -4px -4px 5px 0px #fff9, 7px 7px 20px 0px #0002, 4px 4px 5px 0px #0001;
    transition: all 0.3s ease;
}

.btn-16:hover {
    box-shadow: rgba(255, 255, 255, 1) -1px -1px, -2px -2px, rgba(255, 255, 255, 1) -3px -3px, rgba(255, 255, 255, .9) -4px -4px, rgba(255, 255, 255, .8) -5px -5px, rgba(255, 255, 255, .7) -6px -6px, rgba(255, 255, 255, .6) -7px -7px, rgba(255, 255, 255, .5) -8px -8px, rgba(255, 255, 255, .4) -9px -9px, rgba(255, 255, 255, .3) -10px -10px, rgba(255, 255, 255, .2) -11px -11px, rgba(255, 255, 255, .1) -12px -12px;
}

.btn-16:hover:after {
    left: auto;
    right: 0;
    width: 100%;
}

.btn-16:active {
    top: 2px;
}