html {
    background: url(../images/background.jpg) no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
    font-family: 'DM Sans', sans-serif;
}

body {
    font-family: 'DM Sans', sans-serif;
    background: transparent;
}

header {
    /* Permalink - use to edit and share this gradient: https://colorzilla.com/gradient-editor/#fad800+0,e0862e+100 */
background: #fad800; /* Old browsers */
background: -moz-linear-gradient(top,  #fad800 0%, #e0862e 100%); /* FF3.6-15 */
background: -webkit-linear-gradient(top,  #fad800 0%,#e0862e 100%); /* Chrome10-25,Safari5.1-6 */
background: linear-gradient(to bottom,  #fad800 0%,#e0862e 100%); /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#fad800', endColorstr='#e0862e',GradientType=0 ); /* IE6-9 */

}

.btn.btn-primary {
    background-color: #cb5900;
    border-color: #c5431c;
}

form .col-8.col-sm-12.order-sm-4.text-center {
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

form .col-8.col-sm-12.order-sm-4.text-center a {
    color: #ffffff;
}

section.row {
    background: transparent;
}

section.row.text-center {
    margin-top: 2rem;
}
#course {
    margin-top: 300px;
    background: rgba(255, 255, 255, 0.8);
}

#course h1 {
    font-size: 6rem;
}

#course p {
    font-size: 1.4rem;
}

footer { 
    background: #fff;
    position: fixed;
    bottom: 0;
    width: 100%;
}

#inicio {
    position: fixed;
    width: 200px;
    padding: 1em;
    background: yellow;
    top: 10px;
    right: 100px;
    z-index: 5;
    transform: rotate(-5deg);
    box-shadow: 0 2px 2px 2px rgba(122, 108, 108, 0.4);  
}

@media screen and (max-width: 1200px) {
    #course {
        margin-top: 200px;
    }
}

@media screen and (max-height: 785px) and (max-width: 574px){
    #course {
        margin-top: 100px;
    }
}

@media screen and (max-height: 650px) and (max-width: 574px){
    #course {
        margin-top: 50px;
    }
}

@media screen and (max-height: 770px) and (min-width: 1200px){
    #course {
        margin-top: 150px;
    }
}

@media screen and (max-height: 600px) and (max-width: 574px){
    footer {
        margin-top: 20px;
        position: relative;
    }
}

@media screen and (max-width: 574px) {
    form .col-4.col-sm-4.order-sm-3 {
        margin-top: 1rem;
        text-align: right;
    }
}