css review

overflow: auto;

Float Clearfix

.group: after {
content: “”;
display: table;
clear: both;
}

“both” clears any collapsed space created by floats on both sides of the container.

text-shadow 可以叠加，第一条在最上方。 四个参数，左右、上下、blur、颜色

box-shadow

border-radius

gradient it’s actually an image with absolute dimensions and no fixed size.
background-image:linear-gradient(to top, #ffa949, firebrick);
90deg clockwise
radial-gradient(circle at top right, #ffa949 0%, firebrick 50%, dodgerblue 100%);
transparent 透明，可以作为以上的颜色参数。

@font-face {
font-family: ‘’;
src: url();
}

letter-spacing:
font-weight:

@media (max-width: 960px) {

}
@media (min-width: 481px) and (max-width: 700px) {

}