*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body{
    width: 100%;
    height: 100%;
    color: #ffffff;
    font-family: monospace,Arial,sans-serif;
    font-size: 13px;
    line-height: 1.5;
    background: #000;
    /* background-position: center;
    background-repeat: no-repeat;
    background-size: cover; */
}

.tombol button a{
    text-decoration: none;
    color: #ff0202;
    font-weight: 800;
}

.content h1{
    text-align: center;
    color: aquamarine;
    font-weight: 700;
}

.content p{
    text-align: justify;
    font-weight: 400;
    line-height: 1.5;
    font-size: 17px;
}
.glow-on-hover {
    width: 220px;
    height: 57px;
    border: none;
    outline: none;
    color: #fff;
    background: #000;
    cursor: pointer;
    position: relative;
    z-index: 0;
    border-radius: 10px;
    width: 100%;
}

.glow-on-hover:before {
    content: '';
    background: linear-gradient(45deg, #ff0000, #ff7300, #fffb00, #48ff00, #00ffd5, #002bff, #7a00ff, #ff00c8, #ff0000);
    position: absolute;
    top: -2px;
    left:-2px;
    background-size: 400%;
    z-index: -1;
    filter: blur(1px);
    width: calc(100% + 4px);
    height: calc(100% + 4px);
    animation: glowing 20s linear infinite;
    opacity: 0;
    transition: opacity .3s ease-in-out;
    border-radius: 10px;
}

.glow-on-hover:active {
    color: #000
}

.glow-on-hover:active:after {
    background: transparent;
}

.glow-on-hover:hover:before {
    opacity: 1;
}

.glow-on-hover:after {
    z-index: -1;
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: #111;
    left: 0;
    top: 0;
    border-radius: 7px;
}

@keyframes glowing {
    0% { background-position: 0 0; }
    50% { background-position: 400% 0; }
    100% { background-position: 0 0; }
}
footer {
    text-align: center;
    padding: 15px;
    background-color: aquamarine;
    color: #000;
}