.bg-glow {
    padding: 0.6em 2em;
    border: none;
    position: relative;
    z-index: 0;
}

.bg-glow:hover:before {
    content: "";
    background: linear-gradient(
    45deg,
    rgba(255, 0, 0, 1),
    rgba(255, 115, 0, 1),
    rgba(255, 251, 0, 1),
    rgba(72, 255, 0, 1),
    rgba(0, 255, 213, 1),
    rgba(0, 43, 255, 1),
    rgba(122, 0, 255, 1),
    rgba(255, 0, 200, 1),
    rgba(122, 0, 255, 1),
    rgba(0, 43, 255, 1),
    rgba(0, 255, 213, 1),
    rgba(72, 255, 0, 1),
    rgba(255, 251, 0, 1),
    rgba(255, 115, 0, 1)
    );
    position: absolute;
    top: -2px;
    left: -2px;
    background-size: 200%;
    z-index: -1;
    filter: blur(5px);
    -webkit-filter: blur(5px);
    width: calc(100% + 3px);
    height: calc(100% + 3px);
    animation: glowing-bg-glow 20s linear infinite;
    border-radius: 10px;
}

@keyframes glowing-bg-glow {
    0% {
    background-position: 0 0;
    }
    50% {
    background-position: 400% 0;
    }
    100% {
    background-position: 0 0;
    }
}

.bg-glow:after {
    z-index: -1;
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    background: rgba(34, 34, 34, 1);
    left: 0;
    top: 0;
    border-radius: 10px;
}  
/* *********************************************** */
/* shape create */
.shape {
    position: fixed;
    border-radius: 8px;
    transition: transform 2s ease-in-out, opacity 2s ease-in-out;
    box-shadow: rgba(255, 255, 255, 0.2) 0px 1px 0px 0px inset, rgba(0, 0, 0, 0.9) 0px 0px 0px 1px;
}
.shape-in {
    position: fixed;
    border-radius: 8px;
    transition: transform 2s ease-in-out, opacity 2s ease-in-out;
    box-shadow: rgba(255, 255, 255, 0.2) 0px 1px 0px 0px inset, rgba(0, 0, 0, 0.9) 0px 0px 0px 1px;
}

.shape:hover{
    animation-play-state: paused;
}
.square {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
}

.square-in {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 46px;
    height: 46px;
}

.circle {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
}

.circle-in {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
}

.rectangle-h {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 70px;
    height: 50px;
    border-radius: 8px;
}

.rectangle-h-in {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 66px;
    height: 46px;
    border-radius: 8px;
}
.rectangle-v {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 70px;
    border-radius: 8px;
}

.rectangle-v-in {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 46px;
    height: 66px;
    border-radius: 8px;
}