5 botones con css

#boton1,#boton2,#boton3,#boton4,#boton5{
background:#dadada;
border:solid 1px #dadada;
padding:7px;
width:100px;
text-align:center;
transition:all 2s;
}
#boton1{   
    border-top-left-radius:20px;
    border-bottom-right-radius:20px;
    color:#fff;
    background:-moz-linear-gradient(#093 0%, #0C0 100%);
    background:-webkit-linear-gradient(#093 0%, #0C0 100%);
}
#boton1:hover{
    border-top-left-radius:0px;
    border-bottom-right-radius:0px;
    border-bottom-left-radius:10px;
    border-top-right-radius:10px;
    background:-moz-linear-gradient(#0C0 0%, #093 100%);
    background:-webkit-linear-gradient(#0C0 0%, #093 100%);
}
#boton2{
    border-top-right-radius:100px;
    border-bottom-left-radius:100px;
    color:red;
    background:-moz-linear-gradient(#CF0 0%, #CF0 100%);
    background:-webkit-linear-gradient(#CF0 0%, #CF0 100%);
}
#boton2:hover{
    border-top-right-radius:0px;
    border-bottom-left-radius:0px;
    border-bottom-right-radius:100px;
    border-top-left-radius:100px;
    color:red;
    background:-moz-linear-gradient(#CF0 0%, #9F0 100%);
    background:-webkit-linear-gradient(#CF0 0%, #CF0 100%);
}
#boton3{
    border-top-right-radius:20px;
    border-top-left-radius:20px;
    color:#FFF;
    background:-moz-linear-gradient(#999 0%, #fff 100%);
    background:-webkit-linear-gradient(#999 0%, #fff 100%);   
}
#boton3:hover{
    background:-moz-linear-gradient(#F60 0%, #FC6 100%);
    background:-webkit-linear-gradient(#F60 0%, #FC6 100%);   
}
#boton4{
    border-radius:20px;   
    color:#FFF;
    background:-moz-radial-gradient(#F00 0%, #FF0 100%);
    background:-webkit-radial-gradient(#F00 0%, #FF0 100%);   
}
#boton4:hover{
    background:-moz-linear-gradient(#F90 0%, #F65 100%);
    background:-webkit-linear-gradient(#F90 0%, #F65 100%);   
}
#boton5{
    border-radius:5px;   
    color:#09F;
    background:-moz-linear-gradient(#dadada 0%, #fff 80%);
    background:-webkit-linear-gradient(#dadada 0%, #fff 80%);   
}
#boton5:hover{
    background:-moz-linear-gradient(#fff 0%, #dadada 80%);
    background:-webkit-linear-gradient(#fff 0%, #dadada 80%);   
}