#probando{overflow:hidden;padding: 20px 20px 0 20px;}
button#boton {
    background: #000;
    padding: 5px 15px;
    color: #fff;
    border: 1px solid #d4d4d4;
    border-bottom-color: #000000;
    margin: 0 auto;
    -webkit-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
    position: relative;
    width: 167px;
    font-weight: bold;
    left: 50%;
    margin-left: -75px;
    border-radius: 5px;
}

.medida {
    height: 127px;
    overflow: hidden;
    width: 100%;
    position: relative;
}

#boton a {
    color: #fff;
}
button#boton:hover{
    background: #fff;
    color: #000;
   
}

button.boton2:hover{
    background: #fff;
    color: #000;
   
}