.spinner {
    width: 60px;
    height: 60px;
    background-image: linear-gradient(0deg, #8a76f6, #70cafe);

    margin: 100px auto;
    -webkit-animation: rotateplane 1.2s infinite ease-in-out;
    animation: rotateplane 1.2s infinite ease-in-out;

}

@-webkit-keyframes rotateplane {
    0% {
        -webkit-transform: perspective(120px)
    }

    50% {
        -webkit-transform: perspective(120px) rotateY(180deg)
    }

    100% {
        -webkit-transform: perspective(120px) rotateY(180deg) rotateX(180deg)
    }
}

@keyframes rotateplane {
    0% {
        transform: perspective(120px) rotateX(0deg) rotateY(0deg);
        -webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg)
    }

    50% {
        transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg);
        -webkit-transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg)
    }

    100% {
        transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
        -webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
    }
}