a {
box-shadow: rgb(255, 255, 255) 0px 0px 0px !important;
}
b {
box-shadow: rgba(255, 255, 255, 0.5) 0px 0px 0px !important;
}
c {
background: rgb(255, 255, 255) no-repeat;
}
d {
background: linear-gradient(bottom, rgb(209,209,209) 10%, rgb(250,250,250) 55%);
}