.progress-button {
    &-style-shrink {
        overflow: hidden;
        -webkit-transition: -webkit-transform 0.2s;
        transition: transform 0.2s;
    }

    &-style-shrink.progress-button-dir-vertical {
        .content {
            -webkit-transition: opacity 0.3s, -webkit-transform 0.3s;
            transition: opacity 0.3s, transform 0.3s;

            &:before, &:after {
                top: 100%;
                right: auto;
                left: 50%;
                -webkit-transition: opacity 0.3s;
                transition: opacity 0.3s;
                -webkit-transform: translateX(-50%);
                transform: translateX(-50%);
            }
        }

        &.state-loading {
            -webkit-transform: scaleX(0.1);
            transform: scaleX(0.1);
            .content {
                opacity: 0;
            }
        }

        &.state-error, &.state-success {
            .content {
                -webkit-transform: translateY(-100%);
                transform: translateY(-100%);
            }
        }
    }
}