body {
    font-family: Arial, sans-serif;
    padding: 20px;
}

#wrapper{
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    grid-template-rows: repeat(15, 1fr); 
   
}

.title {
   grid-column: 1/15;
   grid-row: 2/5;
   display: flex;
    justify-content: center;
}

.description {
    grid-column: 2/10;
    grid-row: 3/20;
    display: flex;
    justify-content: center;
    text-align: center;
    justify-items: center;
}

.video1 {
    grid-column: 2/5;
    grid-row: 5/10;
    width: 500px;
    height: 450px;
    display: flex;
    justify-content: center;
}
.undertxt1 {
    grid-column: 2/5;
    grid-row: 9/15;
    display: flex;
    justify-content: center;
    text-align: center;
}

.video2 {
    grid-column: 6/9;
    grid-row: 5/10;
    width: 500px;
    height: 450px;
    display: flex;
    justify-content: center;
}

.undertxt2 {
    grid-column: 6/9;
    grid-row: 9/15;
    display: flex;
    justify-content: center;
    text-align: center;
}

.video4 {
    grid-column: 2/5;
    grid-row: 10/15;
    width: 500px;
    height: 450px;
    display: flex;
    justify-content: center;
}

.undertxt4 {
    grid-column: 2/5;
    grid-row: 14/20;
    display: flex;
    justify-content: center;
    text-align: center;
}

.pdf1 {
    grid-column: 7/9;
    grid-row: 12;
    width: 120px;
    height: 20px;
    display: flex;
    justify-content: center;
    text-align: center;
    align-self: center;
    padding: 10px 20px;
    background-color: #0874218a;
    color: white;
    text-decoration: none;
    border-radius: 5px;
}

.undertxt3 {
    grid-column: 6/9;
    grid-row: 13/20;
    display: flex;
    justify-content: center;
    text-align: center;
}