.twitterP {
  height: 320px;
}

.mbrs {
    float: left;
    width: 25%;
    margin: 0px;
    padding: 0px;
    height: 260px;
    border: 0px solid black;
    text-align:center;
    -webkit-transition: all .05s; /* For Safari 3.1 to 6.0 */
    transition: all 0.5s;
}

@media only screen and (max-width: 1931px) {
  .mbrs {width:25%;}
}

@media only screen and (max-width: 1299px) {
  .mbrs {width:33%;}
}

@media only screen and (max-width: 980px) {
  .mbrs {width:50%;}
}

@media only screen and (max-width: 569px) {
  .mbrs {width:100%;}
}