button {
    margin: 20px;
}

.custom-btn {
    width: 130px;
    height: 40px;
    color: #fff;
    border-radius: 5px;
    padding: 10px 25px;
    font-family: 'Lato', sans-serif;
    font-weight: 500;
    background: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    display: inline-block;
    box-shadow: inset 2px 2px 2px 0px rgba(255,255,255,.5), 7px 7px 20px 0px rgba(0,0,0,.1), 4px 4px 5px 0px rgba(0,0,0,.1);
    outline: none;
}

/* 1 */
.btn-1 {
    background: rgb(6,14,131);
    background: linear-gradient(0deg, rgba(6,14,131,1) 0%, rgba(12,25,180,1) 100%);
    border: none;
}

.btn-1:hover {
    background: rgb(0,3,255);
    background: linear-gradient(0deg, rgba(0,3,255,1) 0%, rgba(2,126,251,1) 100%);
}

/* 2 */
.btn-2 {
    background: rgb(96,9,240);
    background: linear-gradient(0deg, rgba(96,9,240,1) 0%, rgba(129,5,240,1) 100%);
    border: none;
}

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

.btn-2:hover {
    box-shadow: 4px 4px 6px 0 rgba(255,255,255,.5), -4px -4px 6px 0 rgba(116, 125, 136, .5), inset -4px -4px 6px 0 rgba(255,255,255,.2), inset 4px 4px 6px 0 rgba(0, 0, 0, .4);
}


/* 3 */
.btn-3 {
    background: rgb(0,172,238);
    background: linear-gradient(0deg, rgba(0,172,238,1) 0%, rgba(2,126,251,1) 100%);
    width: 130px;
    height: 40px;
    line-height: 42px;
    padding: 0;
    border: none;
}

.btn-3 span {
    position: relative;
    display: block;
    width: 100%;
    height: 100%;
}

.btn-3:before,
.btn-3:after {
    position: absolute;
    content: "";
    right: 0;
    top: 0;
    background: rgba(2,126,251,1);
    transition: all 0.3s ease;
}

.btn-3:before {
    height: 0%;
    width: 2px;
}

.btn-3:after {
    width: 0%;
    height: 2px;
}

.btn-3:hover {
    background: transparent;
    box-shadow: none;
}

.btn-3:hover:before {
    height: 100%;
}

.btn-3:hover:after {
    width: 100%;
}

.btn-3 span:hover {
    color: rgba(2,126,251,1);
}

.btn-3 span:before,
.btn-3 span:after {
    position: absolute;
    content: "";
    left: 0;
    bottom: 0;
    background: rgba(2,126,251,1);
    transition: all 0.3s ease;
}

.btn-3 span:before {
    width: 2px;
    height: 0%;
}

.btn-3 span:after {
    width: 0%;
    height: 2px;
}

.btn-3 span:hover:before {
    height: 100%;
}

.btn-3 span:hover:after {
    width: 100%;
}

/* 4 */
.btn-4 {
    background-color: #4dccc6;
    background-image: linear-gradient(315deg, #4dccc6 0%, #96e4df 74%);
    line-height: 42px;
    padding: 0;
    border: none;
}

.btn-4:hover {
    background-color: #89d8d3;
    background-image: linear-gradient(315deg, #89d8d3 0%, #03c8a8 74%);
}

.btn-4 span {
    position: relative;
    display: block;
    width: 100%;
    height: 100%;
}

.btn-4:before,
.btn-4:after {
    position: absolute;
    content: "";
    right: 0;
    top: 0;
    box-shadow: 4px 4px 6px 0 rgba(255,255,255,.9), -4px -4px 6px 0 rgba(116, 125, 136, .2), inset -4px -4px 6px 0 rgba(255,255,255,.9), inset 4px 4px 6px 0 rgba(116, 125, 136, .3);
    transition: all 0.3s ease;
}

.btn-4:before {
    height: 0%;
    width: .1px;
}

.btn-4:after {
    width: 0%;
    height: .1px;
}

.btn-4:hover:before {
    height: 100%;
}

.btn-4:hover:after {
    width: 100%;
}

.btn-4 span:before,
.btn-4 span:after {
    position: absolute;
    content: "";
    left: 0;
    bottom: 0;
    box-shadow: 4px 4px 6px 0 rgba(255,255,255,.9), -4px -4px 6px 0 rgba(116, 125, 136, .2), inset -4px -4px 6px 0 rgba(255,255,255,.9), inset 4px 4px 6px 0 rgba(116, 125, 136, .3);
    transition: all 0.3s ease;
}

.btn-4 span:before {
    width: .1px;
    height: 0%;
}

.btn-4 span:after {
    width: 0%;
    height: .1px;
}

.btn-4 span:hover:before {
    height: 100%;
}

.btn-4 span:hover:after {
    width: 100%;
}

/* 5 */
.btn-5 {
    width: 130px;
    height: 40px;
    line-height: 42px;
    padding: 0;
    border: none;
    background: rgb(255,27,0);
    background: linear-gradient(0deg, rgba(255,27,0,1) 0%, rgba(251,75,2,1) 100%);
}

.btn-5:hover {
    color: #f0094a;
    background: transparent;
    box-shadow: none;
}

.btn-5:before,
.btn-5:after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    height: 2px;
    width: 0;
    background: #f0094a;
    box-shadow: -1px -1px 5px 0px #fff, 7px 7px 20px 0px #0003, 4px 4px 5px 0px #0002;
    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: rgb(247,150,192);
    background: radial-gradient(circle, rgba(247,150,192,1) 0%, rgba(118,174,241,1) 100%);
    line-height: 42px;
    padding: 0;
    border: none;
}

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

.btn-6:before,
.btn-6:after {
    position: absolute;
    content: "";
    height: 0%;
    width: 1px;
    box-shadow: -1px -1px 20px 0px rgba(255,255,255,1), -4px -4px 5px 0px rgba(255,255,255,1), 7px 7px 20px 0px rgba(0,0,0,.4), 4px 4px 5px 0px rgba(0,0,0,.3);
}

.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 {
    background: transparent;
    color: #76aef1;
    box-shadow: none;
}

.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: "";
    box-shadow: -1px -1px 20px 0px rgba(255,255,255,1), -4px -4px 5px 0px rgba(255,255,255,1), 7px 7px 20px 0px rgba(0,0,0,.4), 4px 4px 5px 0px rgba(0,0,0,.3);
}

.btn-6 span:before {
    left: 0;
    top: 0;
    width: 0%;
    height: .5px;
    transition: all 500ms ease;
}

.btn-6 span:after {
    right: 0;
    bottom: 0;
    width: 0%;
    height: .5px;
    transition: all 500ms ease;
}

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

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

/* 7 */
.btn-7 {
    background: linear-gradient(0deg, rgba(255,151,0,1) 0%, rgba(251,75,2,1) 100%);
    line-height: 42px;
    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(251,75,2,1);
    box-shadow: -7px -7px 20px 0px rgba(255,255,255,.9), -4px -4px 5px 0px rgba(255,255,255,.9), 7px 7px 20px 0px rgba(0,0,0,.2), 4px 4px 5px 0px rgba(0,0,0,.3);
    transition: all 0.3s ease;
}

.btn-7:before {
    height: 0%;
    width: 2px;
}

.btn-7:after {
    width: 0%;
    height: 2px;
}

.btn-7:hover {
    color: rgba(251,75,2,1);
    background: transparent;
}

.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(251,75,2,1);
    box-shadow: -7px -7px 20px 0px rgba(255,255,255,.9), -4px -4px 5px 0px rgba(255,255,255,.9), 7px 7px 20px 0px rgba(0,0,0,.2), 4px 4px 5px 0px rgba(0,0,0,.3);
    transition: all 0.3s ease;
}

.btn-7 span:before {
    width: 2px;
    height: 0%;
}

.btn-7 span:after {
    height: 2px;
    width: 0%;
}

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

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

/* 8 */
.btn-8 {
    background-color: #f0ecfc;
    background-image: linear-gradient(315deg, #f0ecfc 0%, #c797eb 74%);
    line-height: 42px;
    padding: 0;
    border: none;
}

.btn-8 span {
    position: relative;
    display: block;
    width: 100%;
    height: 100%;
}

.btn-8:before,
.btn-8:after {
    position: absolute;
    content: "";
    right: 0;
    bottom: 0;
    background: #c797eb;
    /*box-shadow:  4px 4px 6px 0 rgba(255,255,255,.5),
              -4px -4px 6px 0 rgba(116, 125, 136, .2), 
    inset -4px -4px 6px 0 rgba(255,255,255,.5),
    inset 4px 4px 6px 0 rgba(116, 125, 136, .3);*/
    transition: all 0.3s ease;
}

.btn-8:before {
    height: 0%;
    width: 2px;
}

.btn-8:after {
    width: 0%;
    height: 2px;
}

.btn-8:hover:before {
    height: 100%;
}

.btn-8:hover:after {
    width: 100%;
}

.btn-8:hover {
    background: transparent;
}

.btn-8 span:hover {
    color: #c797eb;
}

.btn-8 span:before,
.btn-8 span:after {
    position: absolute;
    content: "";
    left: 0;
    top: 0;
    background: #c797eb;
    /*box-shadow:  4px 4px 6px 0 rgba(255,255,255,.5),
              -4px -4px 6px 0 rgba(116, 125, 136, .2), 
    inset -4px -4px 6px 0 rgba(255,255,255,.5),
    inset 4px 4px 6px 0 rgba(116, 125, 136, .3);*/
    transition: all 0.3s ease;
}

.btn-8 span:before {
    width: 2px;
    height: 0%;
}

.btn-8 span:after {
    height: 2px;
    width: 0%;
}

.btn-8 span:hover:before {
    height: 100%;
}

.btn-8 span:hover:after {
    width: 100%;
}


/* 9 */
.btn-9 {
    border: none;
    transition: all 0.3s ease;
    overflow: hidden;
}

.btn-9:after {
    position: absolute;
    content: " ";
    z-index: -1;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #1fd1f9;
    background-image: linear-gradient(315deg, #1fd1f9 0%, #b621fe 74%);
    transition: all 0.3s ease;
}

.btn-9:hover {
    background: transparent;
    box-shadow: 4px 4px 6px 0 rgba(255,255,255,.5), -4px -4px 6px 0 rgba(116, 125, 136, .2), inset -4px -4px 6px 0 rgba(255,255,255,.5), inset 4px 4px 6px 0 rgba(116, 125, 136, .3);
    color: #fff;
}

.btn-9:hover:after {
    -webkit-transform: scale(2) rotate(180deg);
    transform: scale(2) rotate(180deg);
    box-shadow: 4px 4px 6px 0 rgba(255,255,255,.5), -4px -4px 6px 0 rgba(116, 125, 136, .2), inset -4px -4px 6px 0 rgba(255,255,255,.5), inset 4px 4px 6px 0 rgba(116, 125, 136, .3);
}

/* 10 */
.btn-10 {
    background: rgb(22,9,240);
    background: linear-gradient(0deg, rgba(22,9,240,1) 0%, rgba(49,110,244,1) 100%);
    color: #fff;
    border: none;
    transition: all 0.3s ease;
    overflow: hidden;
}

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

.btn-10:hover {
    color: #fff;
    border: none;
    background: transparent;
}

.btn-10:hover:after {
    background: rgb(0,3,255);
    background: linear-gradient(0deg, rgba(2,126,251,1) 0%, rgba(0,3,255,1)100%);
    -webkit-transform: scale(1);
    transform: scale(1);
}

/* 11 */
.btn-11 {
    border: none;
    background: rgb(251,33,117);
    background: linear-gradient(0deg, rgba(251,33,117,1) 0%, rgba(234,76,137,1) 100%);
    color: #fff;
    overflow: hidden;
}

.btn-11:hover {
    text-decoration: none;
    color: #fff;
}

.btn-11:before {
    position: absolute;
    content: '';
    display: inline-block;
    top: -180px;
    left: 0;
    width: 30px;
    height: 100%;
    background-color: #fff;
    animation: shiny-btn1 3s ease-in-out infinite;
}

.btn-11:hover {
    opacity: .7;
}

.btn-11:active {
    box-shadow: 4px 4px 6px 0 rgba(255,255,255,.3), -4px -4px 6px 0 rgba(116, 125, 136, .2), inset -4px -4px 6px 0 rgba(255,255,255,.2), inset 4px 4px 6px 0 rgba(0, 0, 0, .2);
}


@-webkit-keyframes shiny-btn1 {
    0% {
        -webkit-transform: scale(0) rotate(45deg);
        opacity: 0;
    }

    80% {
        -webkit-transform: scale(0) rotate(45deg);
        opacity: 0.5;
    }

    81% {
        -webkit-transform: scale(4) rotate(45deg);
        opacity: 1;
    }

    100% {
        -webkit-transform: scale(50) rotate(45deg);
        opacity: 0;
    }
}


/* 12 */
.btn-12 {
    position: relative;
    right: 20px;
    bottom: 20px;
    border: none;
    box-shadow: none;
    width: 130px;
    height: 40px;
    line-height: 42px;
    -webkit-perspective: 230px;
    perspective: 230px;
}

.btn-12 span {
    background: rgb(0,172,238);
    background: linear-gradient(0deg, rgba(0,172,238,1) 0%, rgba(2,126,251,1) 100%);
    display: block;
    position: absolute;
    width: 130px;
    height: 40px;
    box-shadow: inset 2px 2px 2px 0px rgba(255,255,255,.5), 7px 7px 20px 0px rgba(0,0,0,.1), 4px 4px 5px 0px rgba(0,0,0,.1);
    border-radius: 5px;
    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: -7px -7px 20px 0px #fff9, -4px -4px 5px 0px #fff9, 7px 7px 20px 0px #0002, 4px 4px 5px 0px #0001;
    -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) {
    box-shadow: inset 2px 2px 2px 0px rgba(255,255,255,.5), 7px 7px 20px 0px rgba(0,0,0,.1), 4px 4px 5px 0px rgba(0,0,0,.1);
    -webkit-transform: rotateX(0deg);
    -moz-transform: rotateX(0deg);
    transform: rotateX(0deg);
}

.btn-12:hover span:nth-child(2) {
    box-shadow: inset 2px 2px 2px 0px rgba(255,255,255,.5), 7px 7px 20px 0px rgba(0,0,0,.1), 4px 4px 5px 0px rgba(0,0,0,.1);
    color: transparent;
    -webkit-transform: rotateX(-90deg);
    -moz-transform: rotateX(-90deg);
    transform: rotateX(-90deg);
}


/* 13 */
.btn-13 {
    background-color: #89d8d3;
    background-image: linear-gradient(315deg, #89d8d3 0%, #03c8a8 74%);
    border: none;
    z-index: 1;
}

.btn-13:after {
    position: absolute;
    content: "";
    width: 100%;
    height: 0;
    bottom: 0;
    left: 0;
    z-index: -1;
    border-radius: 5px;
    background-color: #4dccc6;
    background-image: linear-gradient(315deg, #4dccc6 0%, #96e4df 74%);
    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-13:hover {
    color: #fff;
}

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

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

/* 13 Red */
.btn-13-red {
    background-color: #Cb3da3;
    background-image: linear-gradient(315deg, #Cb3da3 0%, #Ea3434 74%);
    border: none;
    z-index: 1;
}

    .btn-13-red:after {
        position: absolute;
        content: "";
        width: 100%;
        height: 0;
        bottom: 0;
        left: 0;
        z-index: -1;
        border-radius: 5px;
        background-color: #Cb3da3;
        background-image: linear-gradient(315deg, #e59dd1 0%, #f49999 74%);
        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-13-red:hover {
    color: #fff;
}

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

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

/* 13 Blue */
.btn-13-blue {
    background-color: #2953f0;
    background-image: linear-gradient(315deg, #89CFF0 0%, #06e8ff 74%);
    border: none;
    z-index: 1;
}

    .btn-13-blue:after {
        position: absolute;
        content: "";
        width: 100%;
        height: 0;
        bottom: 0;
        left: 0;
        z-index: -1;
        border-radius: 5px;
        background-color: #Cb3da3;
        background-image: linear-gradient(315deg, #b2dff5 0%, #5df0ff 74%);
        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-13-blue:hover {
        color: #fff;
    }

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

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


/* 14 */
.btn-14 {
    background: rgb(255,151,0);
    border: none;
    z-index: 1;
}

.btn-14:after {
    position: absolute;
    content: "";
    width: 100%;
    height: 0;
    top: 0;
    left: 0;
    z-index: -1;
    border-radius: 5px;
    background-color: #eaf818;
    background-image: linear-gradient(315deg, #eaf818 0%, #f6fc9c 74%);
    box-shadow: inset 2px 2px 2px 0px rgba(255,255,255,.5);
    7px 7px 20px 0px rgba(0,0,0,.1), 4px 4px 5px 0px rgba(0,0,0,.1);
    transition: all 0.3s ease;
}

.btn-14:hover {
    color: #000;
}

.btn-14:hover:after {
    top: auto;
    bottom: 0;
    height: 100%;
}

.btn-14:active {
    top: 2px;
}

/* 15 */
.btn-15 {
    background: #b621fe;
    border: none;
    z-index: 1;
}

.btn-15:after {
    position: absolute;
    content: "";
    width: 0;
    height: 100%;
    top: 0;
    right: 0;
    z-index: -1;
    background-color: #663dff;
    border-radius: 5px;
    box-shadow: inset 2px 2px 2px 0px rgba(255,255,255,.5), 7px 7px 20px 0px rgba(0,0,0,.1), 4px 4px 5px 0px rgba(0,0,0,.1);
    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: none;
    color: #000;
}

.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 {
    color: #000;
}

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

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