/* SPINNER NO Botão */ 

.spinner {
    display: inline-block;
    position: relative;
    width: 24px;
    height: 24px;
}

.spinner:before {
    content: "";
    box-sizing: border-box;
    position: absolute;
    top: 50%;
    left: 4px; /* ajsute o valor de acordp com o espaçaemnto desejado */
    width: 20px;
    height: 20px;
    margin-top: -10px;
    border-radius: 50%;
    border: 2px solid #ccc;
    border-top-color: #333;
    animation: spinner 0.6s linear infinite;
    transform-origin: center;
}

@keyframes spinner {
    to { transform: rotate(368deg); }
}