body{ text-align: center; }
#Banner{ background-color: tomato; width: 100%; height: 100px; }
#Left{ background-color: lightseagreen; width: 25%; height: 350px; float:left; margin-top: 10px; margin-bottom: 10px; }
#Center{ width: 50%; height: 80%; float: left; margin-top: 10px; margin-bottom: 10px;}
#Right{ background-color: lightseagreen; width: 25%; height: 350px; float: left; margin-top: 10px; margin-bottom: 10px; }
#Footer{ background-color: darkgray; width: 100%; height: 100px; clear: both; }
.goreceli
{
height: 50px;
width: 50px;
position: fixed;
background-color: black;
left: 30px; top: 30px;
}
#kaydirma
{
    position: absolute; bottom: 60px;right: 20px; width: 30px;
}