.form_centro {
    margin-left: auto;
    margin-right: auto;
}
.form1 {
    text-align: center;
    
}

.form1 input{
    background-color: aqua;
    text-align: center;
}

.form1 input[type=number] {
    width: 90%;

}

.form2 input {
    width: 80px;
    
}

/*Retira botões de seta de campo number - parte 1*/
.form2 input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/*Retira botões de seta de campo number - parte 2*/
.form2 input[type="number"] {
  -moz-appearance: textfield;
}