*{
    margin: 0;
    padding: 0;    
}

body{
    background: rgba(196, 202, 204, 0.452);
    background-image: url(../res/A3.jpg);
}

a{
    text-decoration: none;
    position: absolute;
    /* left: 50%; */
    /* top: 10%; */
    transform: translate(-50%,50%);
    font-size: 20px;
    background: linear-gradient(90deg,#03a9f4,#dd68aa,#e4e673,#64b4da);
    background-size: 400%;
    width: 300px;
    height: 60px;
    line-height: 60px;
    text-align: center;
    color: rgb(10, 10, 10);
    border-radius: 50px;
    z-index: 1;
}
a::before{
    content: "";
    position: absolute;
    left: -5px;
    right: -5px;
    top: -5px;
    bottom: -5px;
    /* border: 1px solid red; */
    background: linear-gradient(90deg,#03a9f4,#dd68aa,#e4e673,#64b4da);
    background-size: 400%;
    border-radius: 100px;
    filter: blur(20px);
    z-index: -1;
}
a:hover::before{
    animation: sun 8s infinite;
}

a:hover{
    animation: sun 8s infinite;
}

b{
    text-decoration: none;
    position: absolute;
    left: 80%;
    /* top: 10%; */
    transform: translate(-50%,50%);
    font-size: 20px;
    background: linear-gradient(90deg,#03a9f4,#dd68aa,#e4e673,#64b4da);
    background-size: 400%;
    width: 300px;
    height: 60px;
    line-height: 60px;
    text-align: center;
    color: rgb(10, 10, 10);
    border-radius: 50px;
    z-index: 1;
}
b::before{
    content: "";
    position: absolute;
    left: -5px;
    right: -5px;
    top: -5px;
    bottom: -5px;
    /* border: 1px solid red; */
    background: linear-gradient(90deg,#03a9f4,#dd68aa,#e4e673,#64b4da);
    background-size: 400%;
    border-radius: 100px;
    filter: blur(20px);
    z-index: -1;
}
b:hover::before{
    animation: sun 8s infinite;
}

a:hover{
    animation: sun 8s infinite;
}

@keyframes sun{
    100%{
        background-position: -400% 0;
    }
}