mail/src/sass/views/_dialog.scss

.view-dialog {
    padding: 0px;
    color: $color-grey-dark;    
    max-width: 350px;
    height: auto;
    top: 30%;

    @include respond-to(mobile) {
        top: 0;
        max-width: 100%;
    }

    p {
        text-align: center;
        max-width: 80%;
        margin: 30px auto 70px auto;
    }

    .control {
        position: absolute;
        bottom: $lightbox-padding;
        right: $lightbox-padding;

        button {
            width: 100px;
            border: 0!important;
        }
    }
}