.custom-btn {
    /*width: 100%;*/
    height: 40px;
    padding: 10px 25px;
    /*border: 2px solid #000;*/
    font-family: 'Lato', sans-serif;
    font-weight: 500;
    background: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    display: inline-block;
}

/* 1 */
.btn-1 {
    transition: all 0.3s ease;
}
.btn-1:hover {
    box-shadow:
        -7px -7px 20px 0px #fff9,
        -4px -4px 5px 0px #fff9,
        7px 7px 20px 0px #0002,
        4px 4px 5px 0px #0001;
}

/* 2 */
.btn-2 {

}
.btn-2:after {
    position: absolute;
    content: "";
    top: 5px;
    left: 6px;
    width: 90%;
    height: 70%;
    border: 1px solid #000;
    opacity: 0;
    transition: all 0.3s ease;
}
.btn-2:hover:after {
    opacity: 1;
}


/* 3 */
.btn-3 {
    line-height: 39px;
    padding: 0;
}
.btn-3:hover{
    background: transparent;
    color: #000;
}
.btn-3 span {
    position: relative;
    display: block;
    width: 100%;
    height: 100%;
}
.btn-3:before,
.btn-3:after {
    position: absolute;
    content: "";
    left: 0;
    top: 0;
    background: #000;
    transition: all 0.3s ease;
}
.btn-3:before {
    height: 0%;
    width: 2px;
}
.btn-3:after {
    width: 0%;
    height: 2px;
}
.btn-3:hover:before {
    height: 100%;
}
.btn-3:hover:after {
    width: 100%;
}
.btn-3 span:before,
.btn-3 span:after {
    position: absolute;
    content: "";
    right: 0;
    bottom: 0;
    background: #000;
    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 {
    position: relative;
    color: #000;
    z-index: 2;
    line-height: 40px;
    padding: 0;
}
.btn-4:hover{
    border: none;
}
.btn-4:before,
.btn-4:after {
    position: absolute;
    content: "";
    width: 0%;
    height: 0%;
    border: 2px solid;
    z-index: -1;
    transition: all 0.3s ease;
}
.btn-4:before {
    top: 0;
    left: 0;
    border-bottom-color: transparent;
    border-right-color: transparent;
    border-top-color: #000;
    border-left-color: #000;
}
.btn-4:after{
    bottom: 0;
    right: 0;
    border-top-color: transparent;
    border-left-color: transparent;
    border-bottom-color: #000;
    border-right-color: #000;
}
.btn-4:hover:before,
.btn-4:hover:after {
    border-color: #000;
    height: 100%;
    width: 100%;
}



/* 5 */
.btn-5 {
    background: #000;
    color: #fff;
    line-height: 42px;
    padding: 0;
    border: none;
}
.btn-5:hover {
    background: transparent;
    color: #000;
    box-shadow:
        -7px -7px 20px 0px #fff9,
        -4px -4px 5px 0px #fff9,
        7px 7px 20px 0px #0002,
        4px 4px 5px 0px #0001;
}
.btn-5:before,
.btn-5:after{
    content:'';
    position:absolute;
    top:0;
    right:0;
    height:2px;
    width:0;
    background: #000;
    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: #000;
    color: #fff;
    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: 2px;
    background: #000;
}
.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{
    color: #000;
    background: transparent;
}
.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: #000;
}
.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 {
    background: #000;
    color: #fff;
    line-height: 42px;
    padding: 0;
    border: none;
    z-index: 1;
    -webkit-transition: all 0.3s linear;
    transition: all 0.3s linear;
}
.btn-7:hover {
    background: transparent;
    color: #000;
}
.btn-7:before,
.btn-7:after {
    position: absolute;
    content: "";
    left: 0;
    width: 100%;
    height: 50%;
    right: 0;
    z-index: -1;
    background: #000;
    transition: all 0.3s ease;
}
.btn-7:before {
    top: 0;
}
.btn-7:after {
    bottom: 0;
}
.btn-7:hover:before,
.btn-7:hover:after {
    height: 0;
    background-color: #000;
}




/* 8 */
.btn-8 {
    line-height: 40px;
    padding: 0;
    background: transparent;
    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: #000;
}
.btn-8:after {
    position: absolute;
    content: "";
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    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 {
    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 {
    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);
    background: #000;
    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 {
    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;
}
.btn-10:hover:after {
    background: #000;
    -webkit-transform: scale(1);
    transform: scale(1);
}

/* 11 */
.btn-11 {
    overflow: hidden;
    transition: all 0.3s ease;
}
.btn-11:hover {
    background: #000;
    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: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;
    width: 130px;
    height: 40px;
    line-height: 40px;
    -webkit-perspective: 230px;
    perspective: 230px;
}
.btn-12 span {
    display: block;
    position: absolute;
    width: 130px;
    height: 40px;
    border: 2px solid #000;
    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) {
    -webkit-transform: rotateX(0deg);
    -moz-transform: rotateX(0deg);
    transform: rotateX(0deg);
}
.btn-12:hover span:nth-child(2) {
    background: #e0e5ec;
    color: #e0e5ec;
    -webkit-transform: rotateX(-90deg);
    -moz-transform: rotateX(-90deg);
    transform: rotateX(-90deg);
}


/* 13 */
.btn-13 {
    background: #000;
    color: #fff;
    z-index: 1;
}
.btn-13:after {
    position: absolute;
    content: "";
    width: 100%;
    height: 0;
    bottom: 0;
    left: 0;
    z-index: -1;
    background: #e0e5ec;
    transition: all 0.3s ease;
}
.btn-13:hover {
    color: #000;
}
.btn-13:hover:after {
    top: 0;
    height: 100%;
}
.btn-13:active {
    top: 2px;
}


/* 14 */
.btn-14 {
    background: #000;
    color: #fff;
    z-index: 1;
}
.btn-14:after {
    position: absolute;
    content: "";
    width: 100%;
    height: 0;
    top: 0;
    left: 0;
    z-index: -1;
    background: #e0e5ec;
    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: #ffd962;*/
    color: #fff;
    z-index: 1;
    font-weight: 700;
    font-size: inherit;
    font-family: sans-serif;
    background-image: linear-gradient(to left, #f44b50 0%, #f44b50  0%, #f44b50  100%);
    box-shadow: rgba(0, 0, 0, 0.25) 0px 54px 55px, rgba(0, 0, 0, 0.12) 0px -12px 30px, rgba(0, 0, 0, 0.12) 0px 4px 6px, rgba(0, 0, 0, 0.17) 0px 12px 13px, rgba(0, 0, 0, 0.09) 0px -3px 5px;
    box-shadow: rgba(0, 0, 0, 0.25) 0px 54px 55px, rgba(0, 0, 0, 0.12) 0px -12px 30px, rgba(0, 0, 0, 0.12) 0px 4px 6px, rgba(0, 0, 0, 0.17) 0px 12px 13px, rgba(0, 0, 0, 0.09) 0px -3px 5px;

}
.btn-15:after {
    position: absolute;
    content: "";
    width: 0;
    height: 100%;
    top: 0;
    right: 0;
    z-index: -1;   
    transition: all 0.3s ease;
    background-image: linear-gradient(to left, #3CA55C 0%, #B5AC49  0%, #3CA55C  100%);
}
.btn-15:hover {
    top: 2px;
}
.btn-15:hover:after {
    left: 0;
    width: 100%;
}
.btn-15:active {
    top: 2px;
}


/* 16 */
.btn-16 {
    color: #fff;
    z-index: 1;
    font-weight: 700;
    font-size: inherit;
    font-family: sans-serif;
    background-image: linear-gradient(to right, #f44b50 0%, #f44b50  0%, #f44b50 100%);
    box-shadow: rgba(0, 0, 0, 0.25) 0px 54px 55px, rgba(0, 0, 0, 0.12) 0px -12px 30px, rgba(0, 0, 0, 0.12) 0px 4px 6px, rgba(0, 0, 0, 0.17) 0px 12px 13px, rgba(0, 0, 0, 0.09) 0px -3px 5px;


}
.btn-16:after {
    position: absolute;
    content: "";
    width: 0;
    height: 100%;
    top: 0;
    right: 0;
    z-index: -1;
    background-image: linear-gradient(to right, #1FA2FF 0%, #12D8FA  0%, #1FA2FF  100%);
    transition: all 0.3s ease;
}
.btn-16:hover {
    top: 2px;
    background-image: linear-gradient(to left, #3CA55C 0%, #B5AC49  51%, #3CA55C  100%);
}
.btn-16:hover:after {
    left: 0;
    width: 100%;
}
.btn-16:active {
    top: 2px;
}

/* 17 */
.btn-17 {
    color: #fff;
    z-index: 1;
    font-weight: 700;
    font-size: inherit;
    font-family: sans-serif;
    box-shadow: rgba(0, 0, 0, 0.25) 0px 54px 55px, rgba(0, 0, 0, 0.12) 0px -12px 30px, rgba(0, 0, 0, 0.12) 0px 4px 6px, rgba(0, 0, 0, 0.17) 0px 12px 13px, rgba(0, 0, 0, 0.09) 0px -3px 5px;

    background-image: linear-gradient(to right, #f44b50 0%, #f44b50  0%, #f44b50  100%);


}
.btn-17:after {
    position: absolute;
    content: "";
    width: 0;
    height: 100%;
    top: 0;
    right: 0;
    z-index: -1;
    background-image: linear-gradient(to right, #1A2980 0%, #26D0CE  0%, #1A2980  100%);
    transition: all 0.3s ease;
}
.btn-17:hover {
    top: 2px;
    background-image: linear-gradient(to right, #1A2980 0%, #26D0CE  0%, #1A2980  100%);
}
.btn-17:hover:after {
    left: 0;
    width: 100%;
}
.btn-17:active {
    top: 2px;
}


/* 18 */
.btn-18 {
    color: #fff;
    z-index: 1;
    font-weight: 700;
    font-size: inherit;
    font-family: sans-serif;
    box-shadow: rgba(0, 0, 0, 0.25) 0px 54px 55px, rgba(0, 0, 0, 0.12) 0px -12px 30px, rgba(0, 0, 0, 0.12) 0px 4px 6px, rgba(0, 0, 0, 0.17) 0px 12px 13px, rgba(0, 0, 0, 0.09) 0px -3px 5px;

    background-image: linear-gradient(to right, #f44b50 0%, #f44b50  51%, #f44b50  100%);


}
.btn-18:after {
    position: absolute;
    content: "";
    width: 0;
    height: 100%;
    top: 0;
    right: 0;
    z-index: -1;
    background-image: linear-gradient(to right, #4776E6 0%, #8E54E9  51%, #4776E6  100%);
    transition: all 0.3s ease;
}
.btn-18:hover {
    top: 2px;
    background-image: linear-gradient(to right, #4776E6 0%, #8E54E9  51%, #4776E6  100%);
}
.btn-18:hover:after {
    left: 0;
    width: 100%;
}
.btn-18:active {
    top: 2px;
}

/* 19 */
.btn-19 {
    color: #fff;
    z-index: 1;
    font-weight: 700;
    font-size: inherit;
    font-family: sans-serif;
    box-shadow: rgba(0, 0, 0, 0.25) 0px 54px 55px, rgba(0, 0, 0, 0.12) 0px -12px 30px, rgba(0, 0, 0, 0.12) 0px 4px 6px, rgba(0, 0, 0, 0.17) 0px 12px 13px, rgba(0, 0, 0, 0.09) 0px -3px 5px;

    background-image: linear-gradient(to right, #f44b50 0%, #f44b50  51%, #f44b50  100%);


}
.btn-19:after {
    position: absolute;
    content: "";
    width: 0;
    height: 100%;
    top: 0;
    right: 0;
    z-index: -1;
    background-image: linear-gradient(to right, #C04848 0%, #480048  51%, #C04848  100%);
    transition: all 0.3s ease;
}
.btn-19:hover {
    top: 2px;
    background-image: linear-gradient(to right, #C04848 0%, #480048  51%, #C04848  100%);
}
.btn-19:hover:after {
    left: 0;
    width: 100%;
}
.btn-19:active {
    top: 2px;
}
.custom-btn {
    border-radius: 0px;
    border: 0px;
    margin: 6px;
}