body {
    font-family: 'Ubuntu', sans-serif;
    width: 100%;
    height: 100%;
    margin: 0;
}

h2,
h4,
p,
a,
ul,
li,
img,
button {
    margin: 0;
    padding: 0;
}


h2 {
    font-size: 2.2em;
    line-height: 1.1;
}

h4 {
    color: #009688;
    font-size: 1.3em;
}

h2,
h4 {
    line-height: 1.5;
    font-weight: inherit;
}

p {
    line-height: 1.6;
    font-size: 1.05em;
    font-weight: 400;
    color: #777;
}


a,
button {
    display: inline-block;
    color: inherit;
    line-height: 1;
    -webkit-transition: all .25s ease-in-out;
    transition: all .25s ease-in-out;
}

button:focus,
button:active,
button:hover {
    color: white;
    background-color: #02756a;
}

img {
    width: 100%;
}

li {
    display: inline-block;
}

.section {
    padding-top: 200px;
    position: relative;
    background-size: cover;
    z-index: 1;
    background-image: url(../img/background.jpg);
}

.section:before {
    content: '';
    z-index: -1;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, .2);
}

.section:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 150px;
    z-index: -1;
    background: #fff;
}

.header {
    padding: 0 20px;
    text-align: center;
    background: #fff;
}

.header .profile-img {
    height: 200px;
    width: 200px;
    border-radius: 100px;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
    top: -100px;
    margin-bottom: -70px;
}

.header .icon>li>a {
    height: 40px;
    line-height: 35px;
    width: 40px;
    border-radius: 20px;
    position: relative;
    margin: 0 5px 5px;
    color: #fff;
}

.icon {
    margin-top: 20px;
}

.tablink {
    background-color: #009688;
    color: white;
    float: left;
    border: 1px solid white;
    outline: none;
    cursor: pointer;
    padding: 14px 16px;
    font-size: 17px;
    width: 50%;
}

.tablink:hover {
    background-color: rgb(85, 83, 83);
}


.tabcontent {
    color: white;
    padding: 100px 0px;
    height: 100%;
}

.container {
    margin: 0 auto;
    margin-top: 100px;
    max-width: 48rem;
    width: 90%;
}

.contents {
    margin-top: 50px;
}

/* ___________________________ */

.collapsible {
    background-color: #009688;
    color: white;
    cursor: pointer;
    padding: 14px 16px;
    width: 100%;
    border: 1px solid white;
    outline: none;
    font-size: 17px;
    text-align: center;
}

.active {
    background-color: #02756a;
}

.collapsible:hover {
    background-color: rgb(85, 83, 83);
}

.about {
    padding: 20px;
    display: none;
    overflow: hidden;
    text-align: justify;
    line-height: 16;
}

/* ___________________________ */

* {
    box-sizing: border-box;
}

.timeline {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 6px;
    background-color: #009688;
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -3px;
}

.containers {
    padding: 10px 40px;
    position: relative;
    background-color: inherit;
    width: 50%;
}

.containers::after {
    content: '';
    position: absolute;
    width: 25px;
    height: 25px;
    right: -17px;
    background-color: white;
    border: 4px solid #009688;
    top: 15px;
    border-radius: 50%;
    z-index: 1;
}

.left {
    left: 0;
}

.right {
    left: 50%;
}

.left::before {
    content: " ";
    height: 0;
    position: absolute;
    top: 22px;
    width: 0;
    z-index: 1;
    right: 30px;
    border: medium solid #009688;
    border-width: 10px 0 10px 10px;
    border-color: transparent transparent transparent #009688;
}

.right::before {
    content: " ";
    height: 0;
    position: absolute;
    top: 22px;
    width: 0;
    z-index: 1;
    left: 30px;
    border: medium solid #009688;
    border-width: 10px 10px 10px 0;
    border-color: transparent #009688 transparent transparent;
}

.right::after {
    left: -16px;
}

.content {
    padding: 20px 30px;
    background-color: #009688;
    position: relative;
    border-radius: 6px;
}

@media screen and (max-width: 600px) {
    .timeline::after {
        left: 31px;
    }

    .containers {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
    }

    .containers::before {
        left: 60px;
        border: medium solid white;
        border-width: 10px 10px 10px 0;
        border-color: transparent white transparent transparent;
    }

    .left::after,
    .right::after {
        left: 15px;
    }

    .right {
        left: 0%;
    }
}

/* ___________________________ */

.content-expertise {
    padding-left: 10%;
    padding-right: 10%;
}

.container-expertise {
    width: 100%;
    background-color: #ddd;
    padding-left: auto;
    padding-right: auto;
}

.skills {
    text-align: right;
    padding-top: 10px;
    padding-bottom: 10px;
    color: white;
    background-color: #009688;
}

.html-class {
    width: 88%;
}

.css {
    width: 80%;
}

.js {
    width: 75%;
}

.php {
    width: 89%;
}

.ci {
    width: 90%;
}

.angular {
    width: 65%;
}

.node {
    width: 55%;
}

.sql {
    width: 80%;
}

.mysql {
    width: 90%;
}

.mongo {
    width: 77%;
}

.orient {
    width: 65%;
}

/* ___________________________ */

.copyright {
    text-align: center;
    padding: 30px 0;
    color: white;
    background-size: cover;
    z-index: 1;
    background-image: url(../img/background.jpg);
}

::-webkit-scrollbar {
    width: 0px;
}

.textbox {
    color: white;
}