*{
    padding:0;
    margin: 0;
}

h1{
    text-align: center;
}
.container{
    position:relative;
    width: 1226px;
    margin-right: auto;
    margin-left: auto;
}
.wrap{
    display: flex;
    flex-direction: column;
    height: 100%;
}
header{
    /*background: #999;*/
    height: 50px;
}
.content{
    /*background: orange;*/
    height: calc(100vh - 100px);
}
footer h3{
    /*background: #333;*/
    height: 50px;
    text-align: center;
}