style.css

/* 
    #Config Css

    #background-color : {
        Gray: #f5f5f5;
    }
    
    #border: 1px solid #ececee;

    #font: {
        font-family: 'Poppins', sans-serif;
        font-family: 'Source Sans Pro', sans-serif;
    }

 */

*{
    background-color: #f5f5f5;
}

section{
    margin-left: 250px;
}

/* SIDEBAR */
.left-sidebar{
    width: 250px;
    height: 100%;
    position: fixed;
    top: 0px;
    left: 0px;
    border-right: 1px solid #ececee;
}

.left-sidebar .content-sidebar img{
    width: 70px;
}

.left-sidebar .content-sidebar p{
    padding-top: 10px;
    font-family: 'Poppins', sans-serif;
    margin-bottom: 2px;
    letter-spacing: 1px;
}

.left-sidebar .logo-sidebar{
    margin-top: 40px;
    margin-bottom: 40px;
}

.left-sidebar .logo-sidebar h2{
    text-align: center;
    color: #00BCD4;
    letter-spacing: 5px;
}

.left-sidebar nav{
    padding-top: 50px;
    margin-left: 10px;
    text-decoration: none;
}

.left-sidebar nav ul{
    list-style-type: none;
}

.left-sidebar nav ul li{
    padding: 5px;
}

/* HEADER */
.content-header{
    margin-left: 250px;
}

header{
    border-bottom: 1px solid #ececee;
    padding-top: 40px;
    padding-bottom: 10px;
    display: inline-block;
}

.header-left{
    top: 0px;
    left: 0px;
    float: left;
}

.search{
    border: 0px;
    border-bottom: 2px solid #ececee;
}

.header-left input[value="Search"]{
    color: #BDBDBD;
}

.header-left input[value="Search"]:focus{
    color: black;
}

.header-left button{
    border: 0px;
}

.header-right{
    top: 0px;
    left: 0px;
    float: right;
}

.clear-fix{
    clear: both;
}

/* MAIN CONTENT */
.content{
    padding: 40px;
    /* border-bottom: 1px solid black; */
}