* {
    box-sizing: border-box;
    margin: 0;
}
img {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}
span, a, label {
    display: inline-block;
}
*::before, *::after {
    box-sizing: border-box;
}
body{
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #222;
}
@property --a{
syntax:'<angle>' ;
inherits: false;
initial-value: 0deg;
}
.content{
    position: relative;
    width: 400px;
    min-height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: repeating-conic-gradient(from var(--a),#01dbc2 0%,#01dbc2 10%,transparent 10%,transparent 50%);
    animation: animation 6s linear infinite;
}
@keyframes animation{
   0%{
    --a:0deg
   }
    100%{
     --a:360deg
    }
}
.content::after{
    position: absolute;
    content: '';
    width: 100%;
    height: 100%;
    background: repeating-conic-gradient(from var(--a),#01dbc2 0%,#01dbc2 10%,transparent 10%,transparent 50%);
    animation: animation 6s linear infinite;
    animation-delay: -1.5s;
    z-index: -1;
}
.content::before{
    content: '';
    position: absolute;
    inset:2px;
    background-color: #222;
    border: 20px solid #222;
}
form{
    position: relative;
    z-index: 1000;
}
form h2{
    color: white;
    font-weight: 500;
    margin-bottom: 20px;
    padding-top: 60px;
    width: 100%;
    text-align: center;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.inputBx{
    position: relative;
    margin-bottom: 40px;
    width: 240px;
}
.inputBx span{
   position: absolute; 
   inset: -2px;

   z-index: 1;
}
.inputBx span::before{
    content: '';
    position: absolute;
    inset: -2px;
    background: repeating-conic-gradient(from var(--a),#01dbc2 0%,#01dbc2 10%,transparent 10%,transparent 50%);
    animation: animation 6s linear infinite;
    box-shadow: 0 0 0 2px black;
   
}
.inputBx:nth-child(2) span::before{
    animation-delay: -1.5s;
}
.inputBx span::after{
    content: '';
    position: absolute;
    inset: 0;
    background: #292929;
}
.inputBx input{
    position: relative;
    z-index: 1000;
    width: 100%;
    outline: none;
    border: none;
    padding: 8px 14px;
    background: transparent;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}
.inputBx input::placeholder{
    color: white;
    opacity: 0.5;
}
.inputBx input[type="submit"]{
    background: #01dbc2;
    cursor: pointer;
    box-shadow: 0 0 0 4px #01dbc2;
    width: 100%;
    font-weight: 500;
    color: #292929;
    filter: drop-shadow(0 0 15px #01dbc2);
}
.group{
    position: relative;
    padding-bottom: 60px;
    top: -10px;
    display: flex;
    justify-content: space-between;
}
.group a{
    text-decoration: none;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.75em;
}
.group a:nth-child(2),
.group a:hover{
    filter: drop-shadow(0 0 5px #01dbc2);
    color: #01dbc2;
}
@media(max-width:450px){
    body{
        padding: 10px 8px;
    }
.content{
    width: 300px;
    min-height: 300px;
}
}