*{
    padding: 0px;
    margin: 0px;
    font-family: Arial, Helvetica, sans-serif;
}

:root{
    --main_bg: "Test"
    --w: 5vw;
    --h: 2vh;
}

p{
    color: red;
}

p#my_second_paragraph{
    color: blue;
}

p.my_purple_paragraph{
    color: purple;
}

header{
    background-color: blue;
    padding: 5px 20px;
    display: flex;
    align-items: center;
}

header h1{
    
    text-align: center;
    flex: 1;
    font-size: clamp(16px, 2.5vw, 32px);
    color: pink;

}

nav{
    background-color: yellow;
    
}

nav ul{
    display: flex;
    gap: 20px;
    padding: 5px 20px;
    height: 30px;
}

nav ul lis a{
    text-decoration: none;
    color: aqua;
}

main{
    background-color: lime;
    min-height: calc(100vh - 30px - 30px - 37px);
    padding: 20px 20px 50px 20px;
}

main section img{
    width: 50%;
}

#March{
    border-collapse: collapse;
}

#March th, #march td{
    border: 3px; color: black;
}

#March td:hover{
    background-color: blue;
    transition: 0.5s;
}

.past{
    color: aqua;
}

footer{
    background-color: aqua;
    height: 30px;
    position: fixed;
    bottom: 0px;
    left: 0px;
    right: 0px;
    display: flex;
    align-items: center;
    
}