Iniciativas – UMF – Botões

.div-container{
display: flex;
flex-wrap: wrap;
justify-content:center;
margin: 0 auto;
margin-top: 10px;
}

.last-container{
max-width: 36%;
}
.div-container > div{
width: 260px;
height: 200px;
background-color: #eee;
text-align: center;
cursor: pointer;
margin-bottom: 20px;
display: flex;
padding-top:25px;
justify-content: center;
margin-left: 9px;
margin-right: 9px;
}

.div-container > img{
max-width: 100%;

display: block;

}
.txt_titulo{
size: 1px;
font-size: 0.90em;
margin-top: 0px;
line-height: 100% !important;
}

.txt_desc{
font-size: .80em;
width:80%;
margin: 0 auto;
}

.imagem{
font-size: .9em;

padding: 0 20px;
line-height: 100%;
}

.titulo{
font-size: .9em;
padding: 0 15px;
line-height: 100%;
margin-top: 5px;
}
.txt_desc{
font-size: .70em;
width:80%;
margin: 0 auto;
}
@media only screen and (max-width: 479px) {
.last-container{
max-width: 100%;
}
}

Fonte CSTJ