grav-admin-first/user/plugins/admin/themes/grav/scss/template/_notifications.scss

.single-notification.alert {
    position: relative;
}

.hide-notification {
	right: 1rem;
    position: absolute;
}

.alert.raw {
    padding: 0 !important;
}

#admin-dashboard {
    #notifications {
        .admin-block {
            padding: 1rem 0;
        }

        li {
            white-space: nowrap;
            overflow: hidden;
            -ms-text-overflow: ellipsis;
            text-overflow: ellipsis;
        }
    }
}

.dashboard-notifications-container, .plugins-notifications-container, .themes-notifications-container {

    margin-bottom: 1rem;

    .raw {
        position: relative;

        .hide-notification {
            position: absolute;
            top: 5px;
            right: 5px;
            line-height: 1;
            font-size: 1.2rem;
            color: #333;
            text-shadow:
                -1px -1px 0 #fff,
                1px -1px 0 #fff,
                -1px 1px 0 #fff,
                1px 1px 0 #fff;
        }
    }

    &:empty {
        margin: 0;
    }
}

#admin-main {
    .content-padding {

        div[class*=notifications-container] .alert {
            a:hover {
                text-decoration: underline;
            }

            a.button, span.button, button.button {
                float: right;
                text-decoration: none;
            }

        }



        .top-notifications-container {

            margin-bottom: 1rem;

            .alert {
                a {
                    cursor: pointer;
                }
            }

            @include breakpoint(mobile-only) {
                padding-bottom: 20px;
            }
        }
    }

    #notifications {
        td:last-child {
            position: relative;
            span {
                position: absolute;
                display: block;
                right: 2rem;
                top: 6px;
            }
        }
        .badge.alert {
            margin: 0;
            font-size: 0.7rem;
            text-transform: uppercase;
            margin-right: 5px;
            border-radius: 4px;
            vertical-align: middle;
            line-height: 1.7;

            i {
                margin-right: 3px;
            }
        }
    }
}