.div_header {
    background-image: url(https://deadsign.ru/images/articles/code/code-11.jpg);
    background-repeat: no-repeat;
    background-size: 100%;
    background-position: 0% 40%;
    height: 280px;
}

.header_h1 {
    color: bisque;
    text-align: center;
    padding-left: 50%;
    padding-top: 12%;
}

.footer {
    text-align: center;
    color: #777;
}

.footer-gradient {
    background: rgb(117, 112, 228);
    background: linear-gradient(90deg, rgba(117, 112, 228, 1) 0%, rgba(135, 135, 247, 1) 21%, rgba(0, 212, 255, 1) 97%);
    height: 20px;
}

p {
    font-family: Helvetica, Arial, sans-serif;
}

a,
a:link {
    color: blue;
}

a:visited {
    color: blueviolet;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

a:active,
a:focus {
    color: orangered;
}

.m_menu li {
    display: inline;
    margin-left: 10px;
    margin-right: 10px;
    padding-left: 5px;
    padding-right: 5px;
    white-space: nowrap;
    font-size: 2rem;
}

.m_menu a:hover {
    text-decoration: none;
    color: rgb(110, 145, 57);
}

.Project {
    margin-top: 5px;
    margin-bottom: 10px;
    margin-left: 10px;
    margin-right: 10px;
    padding: 5px;
    border: blue solid 1px;
}

.s_project {
    margin-left: 5px;
    margin-right: 5px;
    font-weight: 600;
}

.icon {
    width: 20px;
    border-radius: 50%;
}

.icon:hover {
    opacity: 0.7;
}

.video-container {
    height: 100px;
    width: 100%;
    max-width: 2000px;
    position: relative;
    overflow: hidden;
}

video {
    object-fit: cover;
    position: absolute;
    height: 100px;
    width: 100%;
    top: 0;
    left: 0;
}

.video-container:after {
    content: '';
    display: block;
    height: 100%;
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background: rgba(black, .2);
    z-index: 1;
}

.desc {
    font-family: Raleway;
    font-weight: 400;
    color: coral;
    font-size: 18px;
}

.callout {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    height: 100%;
    text-align: center;
    position: relative;
    z-index: 10;
    width: 70%;
    margin: auto;
}