@-webkit-keyframes speechAnimation {
    0% {
        width: 0%;
        left: 0;
        right: auto
    }
    50% {
        width: 100%;
    }
    100% {
        width: 0%;
        left: auto;
        right: 0
    }
}
@keyframes speechAnimation {
    0% {
        width: 0%;
        left: 0;
        right: auto
    }
    50% {
        width: 100%;
    }
    100% {
        width: 0%;
        left: auto;
        right: 0
    }
}