body {
    color:white;
    background: black;
    margin: 0px;
    font-family: "Yarndings 20", system-ui,;
    margin-bottom: 100px;
}

 header {
    border-bottom: solid 2px blue rgb(42, 122, 228);
    padding: 20px;
    font-size:32px;
    color:blue rgb(42, 122, 228);
 }
 .chamada{
    background: rebeccapurple (183, 156, 213);
    padding-bottom: 80px;
    padding-top: 80px;
    display: flex;
    justify-content: center;
 }

 .chamada.text {
    margin-right: 5%;
 }

 h1 {
    font-size: 40px;
 }


 p {
     font-size: 20px;
 }

 .categoria-videos {
    display: flex;
    overflow-x: auto;
    gap: 10px;
 }

 .categoria {
    padding-left: 20px;
    padding-right: 20px;
    margin-top: 50px;
 }

 .categoria-videos img {
    opacity: 0.5;
    height: 200px;
 }

 .categoria-videos img:hover {
    opacity: 1.0;
    border: 3px solid green;
 }

 .categoria h2 {
    color: blue rgb(42, 122, 228)
 }