* {
     box-sizing: border-box;
     text-align: center;
     margin: 0;
     padding: 0;
 }

 header,
 footer {
     color: #FFF;
     padding: 20px;
 }

 header {
     background-color: #7BE0AD;
 }

 main {
     padding: 20px;
     border: 2px dashed red;
 }

 footer {
     background-color: #344149;
 }

 .container {
     position: relative;
     width: 100%;
     min-height: 100%;
 }

 .body {
     padding-bottom: 50px;
 }

 .foot_bottom {
     height: 60px;
     width: 100%;
     position: fixed;
     bottom: 0px;
     left: 0px;
 }