main.css

img.main_img{

  height:60%;
  width:60%;
  border-radius: 50%;
}

div.home{
  margin-top: 100px;
}
i{
  font-size:36px;
}
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial;
}

.header {
  text-align: center;
  padding: 32px;
}

.row {
  display: -ms-flexbox; /* IE10 */
  display: flex;
  -ms-flex-wrap: wrap; /* IE10 */
  flex-wrap: wrap;
  padding: 0 4px;
}

/* Create four equal columns that sits next to each other */
.column {
  -ms-flex: 25%; /* IE10 */
  flex: 25%;
  max-width: 25%;
  padding: 0 4px;
}

.column img {
  margin-top: 8px;
  vertical-align: middle;
  width: 100%;
}
.carousel_img{
  height:10%;
  width:30%;
}
/* Responsive layout - makes a two column-layout instead of four columns */
@media screen and (max-width: 800px) {
  .column {
    -ms-flex: 50%;
    flex: 50%;
    max-width: 50%;
  }
}

/* Responsive layout - makes the two columns stack on top of each other instead of next to each other */
@media screen and (max-width: 600px) {
  .column {
    -ms-flex: 100%;
    flex: 100%;
    max-width: 100%;
  }
}
.col {
  float: left;
  width: 33.33%;
  padding: 10px;
  height: 300px; /* Should be removed. Only for demonstration */
}
.col p{font-family: "Courier New", Times, monospace;}
.col h1{font-family: "Lucida Console", Times, monospace;}

/* Clear floats after the columns */
.row_main:after {
  content: "";
  display: table;
  clear: both;
}

/* Responsive layout - makes the three columns stack on top of each other instead of next to each other */
@media screen and (max-width: 600px) {
  .col {
    width: 100%;
  }