.but3{bottom:0;right:0;position:fixed;right:auto;top:auto;z-index:-5;opacity:0;visibility:hidden;margin-left:20px;margin-bottom:50px;transition:opacity .15s ease,visibility .15s ease;display:block;width:65px;height:65px;border-radius:50%!important;box-shadow:1px 2px 3px 0 rgba(15,65,33,.08),5px 10px 20px 0 rgba(18,43,26,.12);}
.but3:hover{box-shadow:1px 2px 3px 2px rgba(15,65,33,.08),5px 10px 20px 2px rgba(18,43,26,.2);}
.but3._show3b{z-index:1044;opacity:1;visibility:visible;}
.but3 *{cursor:pointer!important;}
.but_3b,.ico_wrap_1u{display:block;position:absolute;left:0;right:0;top:0;bottom:0;border-radius:50%!important;text-align:center;}
.but_3b{-webkit-animation:animationBtn_36 14s linear infinite;animation:animationBtn_36 14s linear infinite;transform:translateZ(0);}
.ico_wrap_1u .logo_cb_w0,.logo_cb_w0{margin:15px auto 0!important;}
.logo_cb_w0{display:inline-block;width:52%;height:52%;text-align:center;background-position:-2px -2px;background-repeat:no-repeat;background-size:110% 110%;}
@-webkit-keyframes animationBtn_36{0%{opacity:0;}50%{opacity:.5;}100%{opacity:0;}}
@keyframes animationBtn_36{0%{opacity:0;}50%{opacity:.5;}100%{opacity:0;}}
.but4 {margin-bottom:50px;}