How to write the css style of this button?

is to contact the sales button, mainly without the shadow gradient above, it looks like a floating effect, how to write it?

Mar.16,2022

like normal buttons, other styles are the same, with transparent background colors, borders, shadows and so on

background: transparent;
border-color: transparent;

use box-shadow, as follows:

box-shadow:0px 3px 3px -sharpc8c8c8

this looks like the button suspended at the bottom. If it is a psd design, install a pxcode that can see the shadow style.

.footer{
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: -sharpfff;
    box-shadow: 0 3px 18px 0 rgba(0, 0, 0, 0.15);
}
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b303bf-4e961.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b303bf-4e961.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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