@media screen and (max-width: 782px) {
    #wpadminbar #wp-admin-bar-header-preview {
        display: block;
        position: static;
    }
    #wpadminbar #wp-admin-bar-header-preview a.ab-item:before {
        display: block;
        text-indent: 0;
        font: normal 32px / 1 dashicons;
        top: 3px;
        width: 52px;
        text-align: center;
        content: '\f115';
        position: relative;
        float: left;
        speak: never;
        padding: 4px 0;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        background-image: none !important;
        margin-right: 6px;
    }    
}
@media screen and (min-width: 783px) {
    #wpadminbar #wp-admin-bar-header-preview a.ab-item:before {
        display: block;
        text-indent: 0;
        font: normal 18px / 1 dashicons;
        top: 4px;
        width: 26px;
        text-align: center;
        content: '\f115';
        position: relative;
        float: left;
    }
}
/* #wpadminbar #wp-admin-bar-header-preview a.ab-item:before {
    display: block;
    text-indent: 0;
    font: normal 32px / 1 dashicons;
    top: 7px;
    width: 52px;
    text-align: center;
    content: '\f115';
    position: relative;
    float: left;
    speak: never;
    padding: 4px 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-image: none !important;
    margin-right: 6px;
} */