@import url('https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100;0,300;0,400;0,500;0,700;0,900;1,100;1,300;1,400;1,500;1,700;1,900&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}


body {
    font-size: 16px;
    font-weight: 400;
    font-family: 'Roboto', sans-serif;
    background-color: rgb(21, 18, 58);
    color: white;
    position: sticky;
    top: 0;
    min-height: 2em;
}

.bg-fixed {
    height: 100vh;
    width: 100%;
    position: fixed;
    left: 0;
    top: 0;
    z-index: -1;
    background-size: cover;
    background-position: top center;
}


.logo {
    float: left;
    height: 60px;
    margin-top: -10px;
    margin-left: 50px;
}

P {
    line-height: 10 em;
    font-size: 20px;
}
.index {
    background-image: url(../img/bg.jpg);
}
ul {
    font-size: 18px;
}
.thumb img  {
    border: 2px solid #55c5e9;
    padding: 15px;
    background: #666;
    margin-right: 10px;
    margin-bottom: 10px;
    outline-offset: -2px;

    max-width: 258px;
}


.container {
    width: 1400px;
    margin: 0 auto;
    position: sticky;
    top: 0;
    min-height: 2em;
}

.row {
    display: block;
}

.row::after {
    content: "";
    display: block;
    clear: both;
}

.menu {
    height: 80px;
    background: #43499b;
    padding-top: 22px;
   
}

.link-menu {
    display: inline-block;
    padding: 10px 20px;
    color: white;
    text-decoration: none;
    transition: 0.5s;
}

.link-menu:hover {
    background: #6b6b6b;
    border-radius: 50px;
}

.content {
    padding: 20px;
    background:#1f202d;
}

.page-title {
    margin-bottom: 20px;

}

blockquote {
    margin-left: 20px;
    margin-top: 20px;
    margin-bottom: 20px;
    border-left-color: rgb(95, 95, 95);
    border-left-width: 5px;
    border-left-style: solid;
    padding-left: 20px;
    font-style: italic;
}

.right-img {
    float: right;
    width: 300px;
    border-radius: 10px;
    margin-left: 20px;
    margin-bottom: 20px;

}

hr {
    margin: 20px 0;
}

.test {
    background-image: url(../img/logo.png);
    background-size: cover;
    background-position: center;
    height: 300px;
    width: 300px;
    color: transparent;
    padding: 40px;
    text-align: justify;
    transition: 0.5s;

    /* border-color: black;
    border-width: 10px;
    border-style: solid; */

    border: solid 10px black;

}

.test:hover {
    background-image: none;
    background: black;
    color: white;
    border-radius: 50%;
    animation: color-change 1s infinite;
}



@keyframes color-change {
    0% {
        color: gold;
    }

    50% {
        color: white;
    }

    100% {
        color: lightgreen;
    }
}