jitsi-meet/css/modals/feedback/_feedback.scss

@-webkit-keyframes shake-rotate {
    0% {
        -webkit-transform:scale(1) rotate(0deg);
        transform:scale(1) rotate(0deg)
    }

    50% {
        -webkit-transform:scale(.8) rotate(-5deg);
        transform:scale(.8) rotate(-5deg)
    }

    to {
        -webkit-transform:scale(1) rotate(3deg);
        transform:scale(1) rotate(3deg)
    }
}

@keyframes shake-rotate {
    0% {
        -webkit-transform:scale(1) rotate(0deg);
        transform:scale(1) rotate(0deg)
    }

    50% {
        -webkit-transform:scale(.8) rotate(-5deg);
        transform:scale(.8) rotate(-5deg)
    }

    to {
        -webkit-transform:scale(1) rotate(3deg);
        transform:scale(1) rotate(3deg)
    }
}

.shake-rotate {
    display: inline-block;

    -webkit-animation-duration: .4s;
    animation-duration: .4s;
    -webkit-animation-iteration-count: infinite;
    animation-iteration-count: infinite;
    -webkit-animation-name: shake-rotate;
    animation-name: shake-rotate;
    -webkit-animation-timing-function: ease-in-out;
    animation-timing-function: ease-in-out
}

.feedback-dialog {
    .details {
        textarea {
            min-height: 100px;
        }
    }

    .input-control {
        background-color: $feedbackInputBg;
        color: $feedbackInputTextColor;

        &::-webkit-input-placeholder {
            color: $feedbackInputPlaceholderColor;
        }
        &::-moz-placeholder {  /* Firefox 19+ */
            color: $feedbackInputPlaceholderColor;
        }
        &:-ms-input-placeholder {
            color: $feedbackInputPlaceholderColor;
        }
    }

    .rating {
        line-height: 1.2;
        margin-top: 10px;
        text-align: center;

        .star-label {
            font-size: 14px;
            height: 16px;
        }

        .star-btn {
            color: inherit;
            cursor: pointer;
            display: inline-block;
            font-size: 34px;
            outline: none;
            position: relative;
            text-decoration: none;
            @include transition(all .2s ease);

            &.active,
            &:hover,
            &.starHover {
                color: #36B37E;
            };

        }
        .star-btn:focus,
        .star-btn:active {
            outline: 1px solid #B8C7E0;
        }
    }
}