You can use the following starting code for your Canvas customlti.css



/* CANVAS */

body {

       font-family: "LatoWeb","Helvetica Neue",Helvetica,Arial,sans-serif; !important;

       color: #2D3B45;

}


.buttonContent{


       background-color: #008EE2;

       border-radius: 3px;

}


.buttonContent:hover {

       background-color: #0087D7;

       

}


.light-theme a {

       text-decoration: none;

       background: #F2F3F5;

}


.light-theme a:hover {

       text-decoration: none;

       background: #E6EAF0;

}


.light-theme .current {

   background: #A8A8A8;

       border-color:#A8A8A8;        

}