body {
    background: url(christmas.jpeg) center;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center down; 
    background-attachment: fixed;
}

div.lessons__lesson {
    background-color: rgba(255, 255, 255, 0.7);
    border-radius: 40px;
}

.lessons__lesson__logo {
    top: 0px;
}

/*section.links div.section__title {
    background-color: rgba(255, 255, 255, 0.7);
    padding: 4px;
}*/

div.section__title {
    color: #FFFFFF;
    text-shadow: 5px 5px 0.1em #000000, 0px 0px 0.05em #000000;

}

.additional-info  a {
    color: #FFFFFF;
    border-bottom-color: #cc8273;
    text-shadow: 5px 5px 0.1em #000000, 0px 0px 0.05em #000000;
}

section.teachers .section__body {
    background-color: rgba(255, 255, 255, 0.7);
    padding: 8px;
}

span.parallel-name {
    color: white;
    text-shadow: 4px 4px 0.1em #FF0000, 0px 0px 0.05em #000000;
}

nav.main-menu {
    background-color: #5b389c !important;
}

/*
.lessons__lesson a {
    color: deeppink;
}

.lessons__lesson:first-child a {
    color: blueviolet !important;
    border-bottom-color: blueviolet;
}
*/

.lessons__lesson a {
    color: blueviolet !important;
}

.lessons__lesson:first-child a {
    color: deeppink !important;
    border-bottom-color: deeppink;
}