*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html{
    background-color: yellowgreen;
}

header{
    background-color: greenyellow;
    font-size: 40px;
}

h1{
    text-align: center;
    color: purple;
}

p{
    text-align: center;
}

h2{
    text-align: center;
    color: purple;
}
footer{
    background-color: greenyellow;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50px;
}
address{
    text-align: center;
}
nav{
    background-color: yellowgreen;
    display: flex;
    justify-content: space-around;
    align-items: center;
}

a{
    color: Purple;
    font-size: 40px;
}
tr, td, th{
    border: 3px solid black;
    padding: 10px;
}

table{
    border-collapse: collapse;
    padding-top: 100px;
    font-size: 20px;
}
main{
    padding: 100px;
}

#measurement{
    margin: 0 auto;
}

#measurement td{
    border: none;
}