admin-style.css

/*
Theme Name: levelup

Adding Styles in the Admin area

*/
.wp-admin .levelup-notice-install-now{
    padding-left: 20px;
}
.levelup-notice-install-now h3{
    margin: 25px 0px 0 0px;
    font-size: 22px;
    color: #333;
}
.wp-admin .levelup-notice-description{
    margin: 10px 0px 12px 0px;
    font-size: 16px;
    font-weight: 300;
}
.levelup-notice-install-now .submit{
    margin: 0 0px 20px 0px;
}
.levelup-notice-install-now .submit a{
    font-size: 15px;
    height: 40px;
    padding: 5px 15px;
}
.levelup-notice-install-now .submit a:before{
    content: "\f106";
    display: inline-block;
    font: normal 16px/1 'dashicons';
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    vertical-align: top;
    margin: 6px 5px 0 -2px;
    color: #fff;
}