About me HTML CSS PHP Calculator

CSS.

body {
background: #FF51FF;
color: rgb(00,00,00);
font-size:20px;
font-family: Arial,Calibri;
}

a {
color: yellow;
text-decoration: none;
}

a:hover {
text-decoration: underline;
}

input {
background: lightgreen;
width: 150px;
height:50px;
color: #FF0033;
}

.firstinput {
background: lightblue;
border: 1px solid black;
font-size:30px;
}
select {
background: blue;
}

.div4 {
background: #F4FA58;
border: 10px solid red;
width: 250px;
height:100px;
margin-left: 450px;
margin-top: -350px;
padding-left: 50px;
padding-right: 100px;
padding-top: 0px;
text-align: center;
text-shadow: 1px 1px white;
border-radius: 5px;
box-shadow: inset 10 5px 10px yellow, 0 1px 40px green;
}

.div5 {
float: left;
border: 1px solid black;
}

.div6 {
border: 1px solid black;
margin-left: 150px;
width: 500px;
}