Aplicando estilos básicos II

body {
background-color: #0af;
font-family:tahoma;
}

h1{
font-size:30px;
color:#f00;
border-style:solid;
border-color: #fa3;
border-bottom-width:4px;
border-top-width:0px;
border-left-width:0px;
border-right-width:0px;

}

h2{
font-size:20px;
color:#fa3;
}

p{
font-size:12px;
}

p.miparrafo{
color:#ff0;
}