.container {
    width: 400px;
    height: 400px;
    background: #1e91dd;

    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.line {
    position: absolute;
    height: 300px;
    width: 300px;
    border-style: solid;
    border-width: 1px;
    border-color: white;
}

.line1 {
    animation: line1 3s ease-in-out 0s infinite both alternate;
}
.line2 {
    animation: line2 3s ease-in-out 0s infinite both alternate;
}
.line3 {
    animation: line3 3s ease-in-out 0s infinite both alternate;
}
.line4 {
    animation: line4 3s ease-in-out 0s infinite both alternate;
}
.line5 {
    animation: line5 3s ease-in-out 0s infinite both alternate;
}
.line6 {
    animation: line6 3s ease-in-out 0s infinite both alternate;
}
.line7 {
    animation: line7 3s ease-in-out 0s infinite both alternate;
}
.line8 {
    animation: line8 3s ease-in-out 0s infinite both alternate;
}
.line9 {
    animation: line9 3s ease-in-out 0s infinite both alternate;
}


@keyframes line1 {
    0% {
        border-radius: 0%;
        width: 300px;
        transform: rotate(0deg);
    }
    100% {
        border-radius: 50%;
        width: 75px;
        transform: rotate(180deg);
    }
}

@keyframes line2 {
    0% {
        border-radius: 0%;
        width: 300px;
        transform: rotate(0deg);
    }
    100% {
        border-radius: 50%;
        width: 75px;
        transform: rotate(160deg);
    }
}

@keyframes line3 {
    0% {
        border-radius: 0%;
        width: 300px;
        transform: rotate(0deg);
    }
    100% {
        border-radius: 50%;
        width: 75px;
        transform: rotate(140deg);
    }
}

@keyframes line4 {
    0% {
        border-radius: 0%;
        width: 300px;
        transform: rotate(0deg);
    }
    100% {
        border-radius: 50%;
        width: 75px;
        transform: rotate(120deg);
    }
}

@keyframes line5 {
    0% {
        border-radius: 0%;
        width: 300px;
        transform: rotate(0deg);
    }
    100% {
        border-radius: 50%;
        width: 75px;
        transform: rotate(100deg);
    }
}

@keyframes line6 {
    0% {
        border-radius: 0%;
        width: 300px;
        transform: rotate(0deg);
    }
    100% {
        border-radius: 50%;
        width: 75px;
        transform: rotate(80deg);
    }
}

@keyframes line7 {
    0% {
        border-radius: 0%;
        width: 300px;
        transform: rotate(0deg);
    }
    100% {
        border-radius: 50%;
        width: 75px;
        transform: rotate(60deg);
    }
}

@keyframes line8 {
    0% {
        border-radius: 0%;
        width: 300px;
        transform: rotate(0deg);
    }
    100% {
        border-radius: 50%;
        width: 75px;
        transform: rotate(40deg);
    }
}

@keyframes line9 {
    0% {
        border-radius: 0%;
        width: 300px;
        transform: rotate(0deg);
    }
    100% {
        border-radius: 50%;
        width: 75px;
        transform: rotate(20deg);
    }
}

@keyframes line3 {
    0% {
        border-radius: 0%;
        width: 300px;
        transform: rotate(0deg);
    }
    100% {
        border-radius: 50%;
        width: 75px;
        transform: rotate(140deg);
    }
}