.courses .sec-1{height:60vh;background-position:50%;background-size:cover;background-image:url(/public/courses-sec-1-bg.jpg)}@media screen and (min-width:768px){.courses .sec-1{height:80vh}}.courses .sec-3 article.join{background-position:50%;background-size:cover;background-image:url(/public/courses-sec-3-bg.png),linear-gradient(#1b283f,#1b283f);border-radius:.6rem}.courses .sec-3 article.join p{color:hsla(0,0%,100%,.6)}