how to set a gradient color for button in css code example

Example 1: how to change button gradient

.Button:hover { /*this example is used for a hover state*/
background: linear-gradient( 90deg,Color1,Color2 ) ; 
}
/*input the degree with "deg" of the gradient,
then first and second colors*/

Example 2: css button background linear gradient

.btn-grad {background-image: linear-gradient(to right, #E55D87 0%, #5FC3E4  51%, #E55D87  100%)}
         .btn-grad {
            margin: 10px;
            padding: 15px 45px;
            text-align: center;
            text-transform: uppercase;
            transition: 0.5s;
            background-size: 200% auto;
            color: white;            
            box-shadow: 0 0 20px #eee;
            border-radius: 10px;
            display: block;
          }

          .btn-grad:hover {
            background-position: right center; /* change the direction of the change here */
            color: #fff;
            text-decoration: none;
          }