.mySlides {display:none}
#galery {
    width: 100%;
    text-align: center;
}
#galery h1 {
    font-size: 1.4em;
    color: #0a66ee;
    padding-bottom: 4px;
}

.clean {
    clear: both;
}
.boton {
    color: inherit;
    cursor: pointer;
    float: left;
    width: 20%;
    border: none;
    background: no-repeat;
}
.boton1 {
    border: none;
    background: none;
    font-size: 1.2em;
    color: #f9ff00;
}