*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    font-family: sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: #0c0116;
    padding: 
}
.form{
    position: relative;
    padding: 60px 15px;
    width: 270px;
    height: 350px;
    box-shadow: 0px 0px 10px 0px rgb(116, 119, 114);
    border-radius: 5px;
    overflow: hidden;

}
.form-inner{
    position: absolute;
    height: 98%;
    width: 98%;
    top: 50%;
    left: 50%;
    background: #0c0116;
    transform: translate(-50%, -50%);
}
.form-inner h2{
    font-size: 25px;
    color: #d7a3d7;
    text-align: center;
    padding-top: 35px;
}
.content{
    height: 100%;
    width: 100%;
    padding: 25px;
}
.form-inner input{
    display: block;
    padding: 12px 15px;
    width: 100%;
    left: 50%;
    border-radius: 10px;
    margin-top: 20px;
    border: 1.5px solid rgb(109, 87, 121);
    outline: none;
    background: #190521;
    color: white;
}
.brn{
    cursor: pointer;
    color: white;
    margin-top: 40px;
    width: 100%;
    padding: 12px;
    outline: none;
background: #800080;
border: none;
font-size: 18px;
border-radius: 10px;
transition: 0.4s;
}
.brn:hover{
    background: #c907c9;    
}
.form span{
    position: absolute;
    height: 50%;
    width: 50%;
}
.form span:nth-child(1){
    background: #ffda05;
    top: 0;
    left: -48%;
    animation: 5s span1 infinite linear;
    animation-delay: 1s;
}
@keyframes span1{
    0%{
        top: -40%;
        left: -48%;
    }
    25%{
        top: -48%;
        left: 98%;
    }
    50%{
        top: 98%; 
        left: 98%;
    }
    75%{
        top: 98%;
        left: -48%;
    }
    100%{
        top: -48%;
        left: -48%;
    }
    
}
.form span:nth-child(2){
    background: blue;
    bottom: 0;
    right: -48%;
    animation: 5s span2 infinite linear;
    
}
@keyframes span2{
    0%{
        bottom:  -40%;
        right: -48%;
    }
    25%{
        bottom: -48%;
        right: 98%;
    }
    50%{
        bottom: 98%; 
        right: 98%;
    }
    75%{
        bottom: 98%;
        right: -48%;
    }
    100%{
        bottom: -48%;
        right: -48%;
    }
    
}
.form span:nth-child(3){
    background: #800080;
    top: 0;
    right: -48%;
    animation: 5s span3 infinite linear;
   
}
@keyframes span3{
    0%{
        top: -40%;
        left: -48%;
    }
    25%{
        top: -48%;
        left: 98%;
    }
    50%{
        top: 98%; 
        left: 98%;
    }
    75%{
        top: 98%;
        left: -48%;
    }
    100%{
        top: -48%;
        left: -48%;
    }
    
}
.form span:nth-child(4){
    background: #ff0000;
    bottom: 0;
    right: -48%;
    animation: 5s span2 infinite linear;
    animation-delay: 1s;
    
}
@keyframes span4{
    0%{
        bottom:  -40%;
        right: -48%;
    }
    25%{
        bottom: -48%;
        right: 98%;
    }
    50%{
        bottom: 98%; 
        right: 98%;
    }
    75%{
        bottom: 98%;
        right: -48%;
    }
    100%{
        bottom: -48%;
        right: -48%;
    }