.sf-lesson-nav-buttons__inner {
background-color: #051C2C;
margin-top:10px;  
border-radius: 5px;
padding: 20px;
}

.sf-lesson-nav-buttons__inner .sf-lesson-nav-buttons__btn.sf-lesson-nav-buttons__btn--prev {
background: #fff;
color: #383838;
padding: 10px 30px;
padding: 10px 30px;
border-radius: 5px;
 display: inline-block;
font-weight: 700;
    font-size: 19px;
margin: 20px;
}

.sf-lesson-nav-buttons__inner .sf-lesson-nav-buttons__btn.sf-lesson-nav-buttons__btn--prev:before {
    content: "←  ";
}

.sf-lesson-nav-buttons__inner .sf-lesson-nav-buttons__btn.sf-lesson-nav-buttons__btn--next {
background: #FFE400;
color: #000000;
padding: 10px 30px;
padding: 10px 30px;
border-radius: 5px;
 display: inline-block;
font-weight: 700;
    font-size: 19px; 
margin: 20px;
}

.sf-lesson-nav-buttons__inner .sf-lesson-nav-buttons__btn.sf-lesson-nav-buttons__btn--next:after {
    content: "  →";
}