.lesson-banner img { display: block; width: 100%;}
.lesson-content { padding: 1rem 1.5rem; background: #4fd193;}
.lesson-content .title { position: relative; height: 1.8rem; margin-bottom: 1rem; font-size: .8rem; font-weight: 300; line-height: 1.8rem; color: #fff; text-align: center; background: #0c8448;}
.lesson-content h3:after { content: ''; position: absolute; bottom: -.8rem; left: 50%; display: block; width: 0; height: 0; margin-left: -.5rem; border: .4rem solid transparent; border-top: 10px solid #0c8448;}
.lesson-content .lesson-detail { padding-bottom: 1rem;}
.lesson-content h4 { margin: 1rem 0 .5rem; font-size: .8rem; font-weight: 300; color: #fcff48;}
.lesson-content p, .lesson-content p a { font-size: .6rem; line-height: 1.3rem; color: #fff;}
.lesson-content .btn-wrap { text-align: center; }
.lesson-content .btn { display: inline-block; width: 5rem; height: 2rem; margin: 0 .2rem; line-height: 2rem; color: #fff; font-size: .7rem; text-align: center; background: #0c8448; border-radius: 3px; }