.header   { position: absolute; left: 75px;   top: 10px; z-index: 2;}
.line        { position: absolute; left: 0px;   top: 70px; z-index: 2;} 
.clock          { position: absolute; left: 27px; top: 105; z-index:3}

.calc         { position: absolute; left: 270px; top: 95; z-index: 2;}
.day         { position: absolute; left: 420px; top: 95; z-index: 2;}
.notes         { position: absolute; left: 555px; top: 95; z-index: 2;}
.share       {position: absolute; left: 685px; top: 95; z-index: 2;}

H1 { color: white ;  font-size: 14px; font-family: serif }
H3 { color: black ;  font-size: 16px; font-family: serif }


.check_mail         { position: absolute; left: 25px; top: 145; z-index: 2;}
.sign_up    { position: absolute; left: 25px; top: 210; z-index: 2;}
.linux_shell      { position: absolute; left: 25px; top: 280; z-index: 2;}
.tools      { position: absolute; left: 25px; top: 350; z-index: 2;}
.home      { position: absolute; left: 25px; top: 420; z-index: 2;}

.home_page { position: absolute; left: 25px; top: 490; z-index: 2;}
.tech_news { position: absolute; left: 25px; top: 599; z-index: 2;}

.greeting {position: absolute; left: 190px; top: 175px; width: 520px; height: 200px; z-index:4;}